1291295240

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{719}}^1\times {\mathrm{761}}^1$

素因数の和:1550

約数の個数: 64

約数和(自身を含む): 2962656000

約数和(自身を除く): 1671360760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 719, 761, 1180, 1438, 1522, 2360, 2876, 3044, 3595, 3805, 5752, 6088, 7190, 7610, 14380, 15220, 28760, 30440, 42421, 44899, 84842, 89798, 169684, 179596, 212105, 224495, 339368, 359192, 424210, 448990, 547159, 848420, 897980, 1094318, 1696840, 1795960, 2188636, 2735795, 4377272, 5471590, 10943180, 21886360, 32282381, 64564762, 129129524, 161411905, 258259048, 322823810, 645647620, 1291295240]

約数ペア:

[(1, 1291295240), (2, 645647620), (4, 322823810), (5, 258259048), (8, 161411905), (10, 129129524), (20, 64564762), (40, 32282381), (59, 21886360), (118, 10943180), (236, 5471590), (295, 4377272), (472, 2735795), (590, 2188636), (719, 1795960), (761, 1696840), (1180, 1094318), (1438, 897980), (1522, 848420), (2360, 547159), (2876, 448990), (3044, 424210), (3595, 359192), (3805, 339368), (5752, 224495), (6088, 212105), (7190, 179596), (7610, 169684), (14380, 89798), (15220, 84842), (28760, 44899), (30440, 42421)]