20515804560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1\times {\mathrm{1381}}^1$

素因数の和:1886

約数の個数: 240

約数和(自身を含む): 70576197120

約数和(自身を除く): 50060392560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 439, 470, 564, 705, 720, 752, 846, 878, 940, 1128, 1317, 1381, 1410, 1692, 1756, 1880, 2115, 2195, 2256, 2634, 2762, 2820, 3384, 3512, 3760, 3951, 4143, 4230, 4390, 5268, 5524, 5640, 6585, 6768, 6905, 7024, 7902, 8286, 8460, 8780, 10536, 11048, 11280, 12429, 13170, 13810, 15804, 16572, 16920, 17560, 19755, 20633, 20715, 21072, 22096, 24858, 26340, 27620, 31608, 33144, 33840, 35120, 39510, 41266, 41430, 49716, 52680, 55240, 61899, 62145, 63216, 64907, 66288, 79020, 82532, 82860, 99432, 103165, 105360, 110480, 123798, 124290, 129814, 158040, 165064, 165720, 185697, 194721, 198864, 206330, 247596, 248580, 259628, 309495, 316080, 324535, 330128, 331440, 371394, 389442, 412660, 495192, 497160, 519256, 584163, 606259, 618990, 649070, 742788, 778884, 825320, 928485, 973605, 990384, 994320, 1038512, 1168326, 1212518, 1237980, 1298140, 1485576, 1557768, 1650640, 1818777, 1856970, 1947210, 2336652, 2425036, 2475960, 2596280, 2920815, 2971152, 3031295, 3115536, 3637554, 3713940, 3894420, 4673304, 4850072, 4951920, 5192560, 5456331, 5841630, 6062590, 7275108, 7427880, 7788840, 9093885, 9346608, 9700144, 10912662, 11683260, 12125180, 14550216, 14855760, 15577680, 18187770, 21825324, 23366520, 24250360, 27281655, 28494173, 29100432, 36375540, 43650648, 46733040, 48500720, 54563310, 56988346, 72751080, 85482519, 87301296, 109126620, 113976692, 142470865, 145502160, 170965038, 218253240, 227953384, 256447557, 284941730, 341930076, 427412595, 436506480, 455906768, 512895114, 569883460, 683860152, 854825190, 1025790228, 1139766920, 1282237785, 1367720304, 1709650380, 2051580456, 2279533840, 2564475570, 3419300760, 4103160912, 5128951140, 6838601520, 10257902280, 20515804560]

約数ペア:

[(1, 20515804560), (2, 10257902280), (3, 6838601520), (4, 5128951140), (5, 4103160912), (6, 3419300760), (8, 2564475570), (9, 2279533840), (10, 2051580456), (12, 1709650380), (15, 1367720304), (16, 1282237785), (18, 1139766920), (20, 1025790228), (24, 854825190), (30, 683860152), (36, 569883460), (40, 512895114), (45, 455906768), (47, 436506480), (48, 427412595), (60, 341930076), (72, 284941730), (80, 256447557), (90, 227953384), (94, 218253240), (120, 170965038), (141, 145502160), (144, 142470865), (180, 113976692), (188, 109126620), (235, 87301296), (240, 85482519), (282, 72751080), (360, 56988346), (376, 54563310), (423, 48500720), (439, 46733040), (470, 43650648), (564, 36375540), (705, 29100432), (720, 28494173), (752, 27281655), (846, 24250360), (878, 23366520), (940, 21825324), (1128, 18187770), (1317, 15577680), (1381, 14855760), (1410, 14550216), (1692, 12125180), (1756, 11683260), (1880, 10912662), (2115, 9700144), (2195, 9346608), (2256, 9093885), (2634, 7788840), (2762, 7427880), (2820, 7275108), (3384, 6062590), (3512, 5841630), (3760, 5456331), (3951, 5192560), (4143, 4951920), (4230, 4850072), (4390, 4673304), (5268, 3894420), (5524, 3713940), (5640, 3637554), (6585, 3115536), (6768, 3031295), (6905, 2971152), (7024, 2920815), (7902, 2596280), (8286, 2475960), (8460, 2425036), (8780, 2336652), (10536, 1947210), (11048, 1856970), (11280, 1818777), (12429, 1650640), (13170, 1557768), (13810, 1485576), (15804, 1298140), (16572, 1237980), (16920, 1212518), (17560, 1168326), (19755, 1038512), (20633, 994320), (20715, 990384), (21072, 973605), (22096, 928485), (24858, 825320), (26340, 778884), (27620, 742788), (31608, 649070), (33144, 618990), (33840, 606259), (35120, 584163), (39510, 519256), (41266, 497160), (41430, 495192), (49716, 412660), (52680, 389442), (55240, 371394), (61899, 331440), (62145, 330128), (63216, 324535), (64907, 316080), (66288, 309495), (79020, 259628), (82532, 248580), (82860, 247596), (99432, 206330), (103165, 198864), (105360, 194721), (110480, 185697), (123798, 165720), (124290, 165064), (129814, 158040)]