20128710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13693}}^1$

素因数の和:13717

約数の個数: 48

約数和(自身を含む): 56200176

約数和(自身を除く): 36071466

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13693, 27386, 41079, 68465, 82158, 95851, 136930, 191702, 205395, 287553, 410790, 479255, 575106, 670957, 958510, 1341914, 1437765, 2012871, 2875530, 3354785, 4025742, 6709570, 10064355, 20128710]

約数ペア:

[(1, 20128710), (2, 10064355), (3, 6709570), (5, 4025742), (6, 3354785), (7, 2875530), (10, 2012871), (14, 1437765), (15, 1341914), (21, 958510), (30, 670957), (35, 575106), (42, 479255), (49, 410790), (70, 287553), (98, 205395), (105, 191702), (147, 136930), (210, 95851), (245, 82158), (294, 68465), (490, 41079), (735, 27386), (1470, 13693)]