211315840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10651}}^1$

素因数の和:10701

約数の個数: 64

約数和(自身を含む): 521521920

約数和(自身を除く): 310206080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 10651, 19840, 21302, 42604, 53255, 85208, 106510, 170416, 213020, 330181, 340832, 426040, 660362, 681664, 852080, 1320724, 1363328, 1650905, 1704160, 2641448, 3301810, 3408320, 5282896, 6603620, 6816640, 10565792, 13207240, 21131584, 26414480, 42263168, 52828960, 105657920, 211315840]

約数ペア:

[(1, 211315840), (2, 105657920), (4, 52828960), (5, 42263168), (8, 26414480), (10, 21131584), (16, 13207240), (20, 10565792), (31, 6816640), (32, 6603620), (40, 5282896), (62, 3408320), (64, 3301810), (80, 2641448), (124, 1704160), (128, 1650905), (155, 1363328), (160, 1320724), (248, 852080), (310, 681664), (320, 660362), (496, 426040), (620, 340832), (640, 330181), (992, 213020), (1240, 170416), (1984, 106510), (2480, 85208), (3968, 53255), (4960, 42604), (9920, 21302), (10651, 19840)]