84147640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{859}}^1$

素因数の和:980

約数の個数: 64

約数和(自身を含む): 198144000

約数和(自身を除く): 113996360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 395, 620, 632, 790, 859, 1240, 1580, 1718, 2449, 3160, 3436, 4295, 4898, 6872, 8590, 9796, 12245, 17180, 19592, 24490, 26629, 34360, 48980, 53258, 67861, 97960, 106516, 133145, 135722, 213032, 266290, 271444, 339305, 532580, 542888, 678610, 1065160, 1357220, 2103691, 2714440, 4207382, 8414764, 10518455, 16829528, 21036910, 42073820, 84147640]

約数ペア:

[(1, 84147640), (2, 42073820), (4, 21036910), (5, 16829528), (8, 10518455), (10, 8414764), (20, 4207382), (31, 2714440), (40, 2103691), (62, 1357220), (79, 1065160), (124, 678610), (155, 542888), (158, 532580), (248, 339305), (310, 271444), (316, 266290), (395, 213032), (620, 135722), (632, 133145), (790, 106516), (859, 97960), (1240, 67861), (1580, 53258), (1718, 48980), (2449, 34360), (3160, 26629), (3436, 24490), (4295, 19592), (4898, 17180), (6872, 12245), (8590, 9796)]