40257420

素因数分解:

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

素因数の和:13719

約数の個数: 72

約数和(自身を含む): 131133744

約数和(自身を除く): 90876324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 13693, 27386, 41079, 54772, 68465, 82158, 95851, 136930, 164316, 191702, 205395, 273860, 287553, 383404, 410790, 479255, 575106, 670957, 821580, 958510, 1150212, 1341914, 1437765, 1917020, 2012871, 2683828, 2875530, 3354785, 4025742, 5751060, 6709570, 8051484, 10064355, 13419140, 20128710, 40257420]

約数ペア:

[(1, 40257420), (2, 20128710), (3, 13419140), (4, 10064355), (5, 8051484), (6, 6709570), (7, 5751060), (10, 4025742), (12, 3354785), (14, 2875530), (15, 2683828), (20, 2012871), (21, 1917020), (28, 1437765), (30, 1341914), (35, 1150212), (42, 958510), (49, 821580), (60, 670957), (70, 575106), (84, 479255), (98, 410790), (105, 383404), (140, 287553), (147, 273860), (196, 205395), (210, 191702), (245, 164316), (294, 136930), (420, 95851), (490, 82158), (588, 68465), (735, 54772), (980, 41079), (1470, 27386), (2940, 13693)]