81267420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2423}}^1$

素因数の和:2491

約数の個数: 96

約数和(自身を含む): 250854912

約数和(自身を除く): 169587492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 172, 195, 215, 258, 260, 390, 430, 516, 559, 645, 780, 860, 1118, 1290, 1677, 2236, 2423, 2580, 2795, 3354, 4846, 5590, 6708, 7269, 8385, 9692, 11180, 12115, 14538, 16770, 24230, 29076, 31499, 33540, 36345, 48460, 62998, 72690, 94497, 104189, 125996, 145380, 157495, 188994, 208378, 312567, 314990, 377988, 416756, 472485, 520945, 625134, 629980, 944970, 1041890, 1250268, 1354457, 1562835, 1889940, 2083780, 2708914, 3125670, 4063371, 5417828, 6251340, 6772285, 8126742, 13544570, 16253484, 20316855, 27089140, 40633710, 81267420]

約数ペア:

[(1, 81267420), (2, 40633710), (3, 27089140), (4, 20316855), (5, 16253484), (6, 13544570), (10, 8126742), (12, 6772285), (13, 6251340), (15, 5417828), (20, 4063371), (26, 3125670), (30, 2708914), (39, 2083780), (43, 1889940), (52, 1562835), (60, 1354457), (65, 1250268), (78, 1041890), (86, 944970), (129, 629980), (130, 625134), (156, 520945), (172, 472485), (195, 416756), (215, 377988), (258, 314990), (260, 312567), (390, 208378), (430, 188994), (516, 157495), (559, 145380), (645, 125996), (780, 104189), (860, 94497), (1118, 72690), (1290, 62998), (1677, 48460), (2236, 36345), (2423, 33540), (2580, 31499), (2795, 29076), (3354, 24230), (4846, 16770), (5590, 14538), (6708, 12115), (7269, 11180), (8385, 9692)]