128524280

素因数分解:

$2^3\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{1867}}^1$

素因数の和:3599

約数の個数: 32

約数和(自身を含む): 289502640

約数和(自身を除く): 160978360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1721, 1867, 3442, 3734, 6884, 7468, 8605, 9335, 13768, 14936, 17210, 18670, 34420, 37340, 68840, 74680, 3213107, 6426214, 12852428, 16065535, 25704856, 32131070, 64262140, 128524280]

約数ペア:

[(1, 128524280), (2, 64262140), (4, 32131070), (5, 25704856), (8, 16065535), (10, 12852428), (20, 6426214), (40, 3213107), (1721, 74680), (1867, 68840), (3442, 37340), (3734, 34420), (6884, 18670), (7468, 17210), (8605, 14936), (9335, 13768)]