81810540

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{941}}^1$

素因数の和:989

約数の個数: 192

約数和(自身を含む): 303851520

約数和(自身を除く): 222040980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 54, 60, 63, 69, 70, 84, 90, 92, 105, 108, 115, 126, 135, 138, 140, 161, 180, 189, 207, 210, 230, 252, 270, 276, 315, 322, 345, 378, 414, 420, 460, 483, 540, 621, 630, 644, 690, 756, 805, 828, 941, 945, 966, 1035, 1242, 1260, 1380, 1449, 1610, 1882, 1890, 1932, 2070, 2415, 2484, 2823, 2898, 3105, 3220, 3764, 3780, 4140, 4347, 4705, 4830, 5646, 5796, 6210, 6587, 7245, 8469, 8694, 9410, 9660, 11292, 12420, 13174, 14115, 14490, 16938, 17388, 18820, 19761, 21643, 21735, 25407, 26348, 28230, 28980, 32935, 33876, 39522, 42345, 43286, 43470, 50814, 56460, 59283, 64929, 65870, 79044, 84690, 86572, 86940, 98805, 101628, 108215, 118566, 127035, 129858, 131740, 151501, 169380, 177849, 194787, 197610, 216430, 237132, 254070, 259716, 296415, 303002, 324645, 355698, 389574, 395220, 432860, 454503, 508140, 584361, 592830, 606004, 649290, 711396, 757505, 779148, 889245, 909006, 973935, 1168722, 1185660, 1298580, 1363509, 1515010, 1778490, 1818012, 1947870, 2272515, 2337444, 2727018, 2921805, 3030020, 3556980, 3895740, 4090527, 4545030, 5454036, 5843610, 6817545, 8181054, 9090060, 11687220, 13635090, 16362108, 20452635, 27270180, 40905270, 81810540]

約数ペア:

[(1, 81810540), (2, 40905270), (3, 27270180), (4, 20452635), (5, 16362108), (6, 13635090), (7, 11687220), (9, 9090060), (10, 8181054), (12, 6817545), (14, 5843610), (15, 5454036), (18, 4545030), (20, 4090527), (21, 3895740), (23, 3556980), (27, 3030020), (28, 2921805), (30, 2727018), (35, 2337444), (36, 2272515), (42, 1947870), (45, 1818012), (46, 1778490), (54, 1515010), (60, 1363509), (63, 1298580), (69, 1185660), (70, 1168722), (84, 973935), (90, 909006), (92, 889245), (105, 779148), (108, 757505), (115, 711396), (126, 649290), (135, 606004), (138, 592830), (140, 584361), (161, 508140), (180, 454503), (189, 432860), (207, 395220), (210, 389574), (230, 355698), (252, 324645), (270, 303002), (276, 296415), (315, 259716), (322, 254070), (345, 237132), (378, 216430), (414, 197610), (420, 194787), (460, 177849), (483, 169380), (540, 151501), (621, 131740), (630, 129858), (644, 127035), (690, 118566), (756, 108215), (805, 101628), (828, 98805), (941, 86940), (945, 86572), (966, 84690), (1035, 79044), (1242, 65870), (1260, 64929), (1380, 59283), (1449, 56460), (1610, 50814), (1882, 43470), (1890, 43286), (1932, 42345), (2070, 39522), (2415, 33876), (2484, 32935), (2823, 28980), (2898, 28230), (3105, 26348), (3220, 25407), (3764, 21735), (3780, 21643), (4140, 19761), (4347, 18820), (4705, 17388), (4830, 16938), (5646, 14490), (5796, 14115), (6210, 13174), (6587, 12420), (7245, 11292), (8469, 9660), (8694, 9410)]