1656556520

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{63421}}^1$

素因数の和:64085

約数の個数: 32

約数和(自身を含む): 3733018920

約数和(自身を除く): 2076462400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 3265, 5224, 6530, 13060, 26120, 63421, 126842, 253684, 317105, 507368, 634210, 1268420, 2536840, 41413913, 82827826, 165655652, 207069565, 331311304, 414139130, 828278260, 1656556520]

約数ペア:

[(1, 1656556520), (2, 828278260), (4, 414139130), (5, 331311304), (8, 207069565), (10, 165655652), (20, 82827826), (40, 41413913), (653, 2536840), (1306, 1268420), (2612, 634210), (3265, 507368), (5224, 317105), (6530, 253684), (13060, 126842), (26120, 63421)]