31817240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8741}}^1$

素因数の和:8772

約数の個数: 64

約数和(自身を含む): 88119360

約数和(自身を除く): 56302120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 8741, 17482, 34964, 43705, 61187, 69928, 87410, 113633, 122374, 174820, 227266, 244748, 305935, 349640, 454532, 489496, 568165, 611870, 795431, 909064, 1136330, 1223740, 1590862, 2272660, 2447480, 3181724, 3977155, 4545320, 6363448, 7954310, 15908620, 31817240]

約数ペア:

[(1, 31817240), (2, 15908620), (4, 7954310), (5, 6363448), (7, 4545320), (8, 3977155), (10, 3181724), (13, 2447480), (14, 2272660), (20, 1590862), (26, 1223740), (28, 1136330), (35, 909064), (40, 795431), (52, 611870), (56, 568165), (65, 489496), (70, 454532), (91, 349640), (104, 305935), (130, 244748), (140, 227266), (182, 174820), (260, 122374), (280, 113633), (364, 87410), (455, 69928), (520, 61187), (728, 43705), (910, 34964), (1820, 17482), (3640, 8741)]