20581463880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{881}}^1$

素因数の和:1221

約数の個数: 256

約数和(自身を含む): 69701990400

約数和(自身を除く): 49120526520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 97, 108, 120, 135, 180, 194, 216, 223, 270, 291, 360, 388, 446, 485, 540, 582, 669, 776, 873, 881, 892, 970, 1080, 1115, 1164, 1338, 1455, 1746, 1762, 1784, 1940, 2007, 2230, 2328, 2619, 2643, 2676, 2910, 3345, 3492, 3524, 3880, 4014, 4365, 4405, 4460, 5238, 5286, 5352, 5820, 6021, 6690, 6984, 7048, 7929, 8028, 8730, 8810, 8920, 10035, 10476, 10572, 11640, 12042, 13095, 13215, 13380, 15858, 16056, 17460, 17620, 20070, 20952, 21144, 21631, 23787, 24084, 26190, 26430, 26760, 30105, 31716, 34920, 35240, 39645, 40140, 43262, 47574, 48168, 52380, 52860, 60210, 63432, 64893, 79290, 80280, 85457, 86524, 95148, 104760, 105720, 108155, 118935, 120420, 129786, 158580, 170914, 173048, 190296, 194679, 196463, 216310, 237870, 240840, 256371, 259572, 317160, 324465, 341828, 389358, 392926, 427285, 432620, 475740, 512742, 519144, 584037, 589389, 648930, 683656, 769113, 778716, 785852, 854570, 865240, 951480, 973395, 982315, 1025484, 1168074, 1178778, 1281855, 1297860, 1538226, 1557432, 1571704, 1709140, 1768167, 1946790, 1964630, 2050968, 2307339, 2336148, 2357556, 2563710, 2595720, 2920185, 2946945, 3076452, 3418280, 3536334, 3845565, 3893580, 3929260, 4614678, 4672296, 4715112, 5127420, 5304501, 5840370, 5893890, 6152904, 7072668, 7691130, 7787160, 7858520, 8840835, 9229356, 10254840, 10609002, 11536695, 11680740, 11787780, 14145336, 15382260, 17681670, 18458712, 19056911, 21218004, 23073390, 23361480, 23575560, 26522505, 30764520, 35363340, 38113822, 42436008, 46146780, 53045010, 57170733, 70726680, 76227644, 92293560, 95284555, 106090020, 114341466, 152455288, 171512199, 190569110, 212180040, 228682932, 285853665, 343024398, 381138220, 457365864, 514536597, 571707330, 686048796, 762276440, 857560995, 1029073194, 1143414660, 1372097592, 1715121990, 2058146388, 2286829320, 2572682985, 3430243980, 4116292776, 5145365970, 6860487960, 10290731940, 20581463880]

約数ペア:

[(1, 20581463880), (2, 10290731940), (3, 6860487960), (4, 5145365970), (5, 4116292776), (6, 3430243980), (8, 2572682985), (9, 2286829320), (10, 2058146388), (12, 1715121990), (15, 1372097592), (18, 1143414660), (20, 1029073194), (24, 857560995), (27, 762276440), (30, 686048796), (36, 571707330), (40, 514536597), (45, 457365864), (54, 381138220), (60, 343024398), (72, 285853665), (90, 228682932), (97, 212180040), (108, 190569110), (120, 171512199), (135, 152455288), (180, 114341466), (194, 106090020), (216, 95284555), (223, 92293560), (270, 76227644), (291, 70726680), (360, 57170733), (388, 53045010), (446, 46146780), (485, 42436008), (540, 38113822), (582, 35363340), (669, 30764520), (776, 26522505), (873, 23575560), (881, 23361480), (892, 23073390), (970, 21218004), (1080, 19056911), (1115, 18458712), (1164, 17681670), (1338, 15382260), (1455, 14145336), (1746, 11787780), (1762, 11680740), (1784, 11536695), (1940, 10609002), (2007, 10254840), (2230, 9229356), (2328, 8840835), (2619, 7858520), (2643, 7787160), (2676, 7691130), (2910, 7072668), (3345, 6152904), (3492, 5893890), (3524, 5840370), (3880, 5304501), (4014, 5127420), (4365, 4715112), (4405, 4672296), (4460, 4614678), (5238, 3929260), (5286, 3893580), (5352, 3845565), (5820, 3536334), (6021, 3418280), (6690, 3076452), (6984, 2946945), (7048, 2920185), (7929, 2595720), (8028, 2563710), (8730, 2357556), (8810, 2336148), (8920, 2307339), (10035, 2050968), (10476, 1964630), (10572, 1946790), (11640, 1768167), (12042, 1709140), (13095, 1571704), (13215, 1557432), (13380, 1538226), (15858, 1297860), (16056, 1281855), (17460, 1178778), (17620, 1168074), (20070, 1025484), (20952, 982315), (21144, 973395), (21631, 951480), (23787, 865240), (24084, 854570), (26190, 785852), (26430, 778716), (26760, 769113), (30105, 683656), (31716, 648930), (34920, 589389), (35240, 584037), (39645, 519144), (40140, 512742), (43262, 475740), (47574, 432620), (48168, 427285), (52380, 392926), (52860, 389358), (60210, 341828), (63432, 324465), (64893, 317160), (79290, 259572), (80280, 256371), (85457, 240840), (86524, 237870), (95148, 216310), (104760, 196463), (105720, 194679), (108155, 190296), (118935, 173048), (120420, 170914), (129786, 158580)]