20160787620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1\times {\mathrm{4289}}^1$

素因数の和:4957

約数の個数: 96

約数和(自身を含む): 56936880000

約数和(自身を除く): 36776092380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 499, 628, 785, 942, 998, 1497, 1570, 1884, 1996, 2355, 2495, 2994, 3140, 4289, 4710, 4990, 5988, 7485, 8578, 9420, 9980, 12867, 14970, 17156, 21445, 25734, 29940, 42890, 51468, 64335, 78343, 85780, 128670, 156686, 235029, 257340, 313372, 391715, 470058, 673373, 783430, 940116, 1175145, 1346746, 1566860, 2020119, 2140211, 2350290, 2693492, 3366865, 4040238, 4280422, 4700580, 6420633, 6733730, 8080476, 8560844, 10100595, 10701055, 12841266, 13467460, 20201190, 21402110, 25682532, 32103165, 40402380, 42804220, 64206330, 128412660, 336013127, 672026254, 1008039381, 1344052508, 1680065635, 2016078762, 3360131270, 4032157524, 5040196905, 6720262540, 10080393810, 20160787620]

約数ペア:

[(1, 20160787620), (2, 10080393810), (3, 6720262540), (4, 5040196905), (5, 4032157524), (6, 3360131270), (10, 2016078762), (12, 1680065635), (15, 1344052508), (20, 1008039381), (30, 672026254), (60, 336013127), (157, 128412660), (314, 64206330), (471, 42804220), (499, 40402380), (628, 32103165), (785, 25682532), (942, 21402110), (998, 20201190), (1497, 13467460), (1570, 12841266), (1884, 10701055), (1996, 10100595), (2355, 8560844), (2495, 8080476), (2994, 6733730), (3140, 6420633), (4289, 4700580), (4710, 4280422), (4990, 4040238), (5988, 3366865), (7485, 2693492), (8578, 2350290), (9420, 2140211), (9980, 2020119), (12867, 1566860), (14970, 1346746), (17156, 1175145), (21445, 940116), (25734, 783430), (29940, 673373), (42890, 470058), (51468, 391715), (64335, 313372), (78343, 257340), (85780, 235029), (128670, 156686)]