81877384

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 168364800

約数和(自身を除く): 86487416

約数列:

[1, 2, 4, 8, 19, 38, 47, 73, 76, 94, 146, 152, 157, 188, 292, 314, 376, 584, 628, 893, 1256, 1387, 1786, 2774, 2983, 3431, 3572, 5548, 5966, 6862, 7144, 7379, 11096, 11461, 11932, 13724, 14758, 22922, 23864, 27448, 29516, 45844, 59032, 65189, 91688, 130378, 140201, 217759, 260756, 280402, 435518, 521512, 538667, 560804, 871036, 1077334, 1121608, 1742072, 2154668, 4309336, 10234673, 20469346, 40938692, 81877384]

約数ペア:

[(1, 81877384), (2, 40938692), (4, 20469346), (8, 10234673), (19, 4309336), (38, 2154668), (47, 1742072), (73, 1121608), (76, 1077334), (94, 871036), (146, 560804), (152, 538667), (157, 521512), (188, 435518), (292, 280402), (314, 260756), (376, 217759), (584, 140201), (628, 130378), (893, 91688), (1256, 65189), (1387, 59032), (1786, 45844), (2774, 29516), (2983, 27448), (3431, 23864), (3572, 22922), (5548, 14758), (5966, 13724), (6862, 11932), (7144, 11461), (7379, 11096)]