296840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 687960

約数和(自身を除く): 391120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 181, 205, 328, 362, 410, 724, 820, 905, 1448, 1640, 1810, 3620, 7240, 7421, 14842, 29684, 37105, 59368, 74210, 148420, 296840]

約数ペア:

[(1, 296840), (2, 148420), (4, 74210), (5, 59368), (8, 37105), (10, 29684), (20, 14842), (40, 7421), (41, 7240), (82, 3620), (164, 1810), (181, 1640), (205, 1448), (328, 905), (362, 820), (410, 724)]