20856331360

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1\times {\mathrm{10429}}^1$

素因数の和:10904

約数の個数: 96

約数和(自身を含む): 51095318400

約数和(自身を除く): 30238987040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 431, 464, 580, 862, 928, 1160, 1724, 2155, 2320, 3448, 4310, 4640, 6896, 8620, 10429, 12499, 13792, 17240, 20858, 24998, 34480, 41716, 49996, 52145, 62495, 68960, 83432, 99992, 104290, 124990, 166864, 199984, 208580, 249980, 302441, 333728, 399968, 417160, 499960, 604882, 834320, 999920, 1209764, 1512205, 1668640, 1999840, 2419528, 3024410, 4494899, 4839056, 6048820, 8989798, 9678112, 12097640, 17979596, 22474495, 24195280, 35959192, 44948990, 48390560, 71918384, 89897980, 130352071, 143836768, 179795960, 260704142, 359591920, 521408284, 651760355, 719183840, 1042816568, 1303520710, 2085633136, 2607041420, 4171266272, 5214082840, 10428165680, 20856331360]

約数ペア:

[(1, 20856331360), (2, 10428165680), (4, 5214082840), (5, 4171266272), (8, 2607041420), (10, 2085633136), (16, 1303520710), (20, 1042816568), (29, 719183840), (32, 651760355), (40, 521408284), (58, 359591920), (80, 260704142), (116, 179795960), (145, 143836768), (160, 130352071), (232, 89897980), (290, 71918384), (431, 48390560), (464, 44948990), (580, 35959192), (862, 24195280), (928, 22474495), (1160, 17979596), (1724, 12097640), (2155, 9678112), (2320, 8989798), (3448, 6048820), (4310, 4839056), (4640, 4494899), (6896, 3024410), (8620, 2419528), (10429, 1999840), (12499, 1668640), (13792, 1512205), (17240, 1209764), (20858, 999920), (24998, 834320), (34480, 604882), (41716, 499960), (49996, 417160), (52145, 399968), (62495, 333728), (68960, 302441), (83432, 249980), (99992, 208580), (104290, 199984), (124990, 166864)]