65416840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{523}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 152798400

約数和(自身を除く): 87381560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 59, 106, 118, 212, 236, 265, 295, 424, 472, 523, 530, 590, 1046, 1060, 1180, 2092, 2120, 2360, 2615, 3127, 4184, 5230, 6254, 10460, 12508, 15635, 20920, 25016, 27719, 30857, 31270, 55438, 61714, 62540, 110876, 123428, 125080, 138595, 154285, 221752, 246856, 277190, 308570, 554380, 617140, 1108760, 1234280, 1635421, 3270842, 6541684, 8177105, 13083368, 16354210, 32708420, 65416840]

約数ペア:

[(1, 65416840), (2, 32708420), (4, 16354210), (5, 13083368), (8, 8177105), (10, 6541684), (20, 3270842), (40, 1635421), (53, 1234280), (59, 1108760), (106, 617140), (118, 554380), (212, 308570), (236, 277190), (265, 246856), (295, 221752), (424, 154285), (472, 138595), (523, 125080), (530, 123428), (590, 110876), (1046, 62540), (1060, 61714), (1180, 55438), (2092, 31270), (2120, 30857), (2360, 27719), (2615, 25016), (3127, 20920), (4184, 15635), (5230, 12508), (6254, 10460)]