20318560

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^2\times {\mathrm{151}}^1$

素因数の和:224

約数の個数: 72

約数和(自身を含む): 50044176

約数和(自身を除く): 29725616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 151, 160, 232, 290, 302, 464, 580, 604, 755, 841, 928, 1160, 1208, 1510, 1682, 2320, 2416, 3020, 3364, 4205, 4379, 4640, 4832, 6040, 6728, 8410, 8758, 12080, 13456, 16820, 17516, 21895, 24160, 26912, 33640, 35032, 43790, 67280, 70064, 87580, 126991, 134560, 140128, 175160, 253982, 350320, 507964, 634955, 700640, 1015928, 1269910, 2031856, 2539820, 4063712, 5079640, 10159280, 20318560]

約数ペア:

[(1, 20318560), (2, 10159280), (4, 5079640), (5, 4063712), (8, 2539820), (10, 2031856), (16, 1269910), (20, 1015928), (29, 700640), (32, 634955), (40, 507964), (58, 350320), (80, 253982), (116, 175160), (145, 140128), (151, 134560), (160, 126991), (232, 87580), (290, 70064), (302, 67280), (464, 43790), (580, 35032), (604, 33640), (755, 26912), (841, 24160), (928, 21895), (1160, 17516), (1208, 16820), (1510, 13456), (1682, 12080), (2320, 8758), (2416, 8410), (3020, 6728), (3364, 6040), (4205, 4832), (4379, 4640)]