8658920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6983}}^1$

素因数の和:7025

約数の個数: 32

約数和(自身を含む): 20113920

約数和(自身を除く): 11455000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 6983, 13966, 27932, 34915, 55864, 69830, 139660, 216473, 279320, 432946, 865892, 1082365, 1731784, 2164730, 4329460, 8658920]

約数ペア:

[(1, 8658920), (2, 4329460), (4, 2164730), (5, 1731784), (8, 1082365), (10, 865892), (20, 432946), (31, 279320), (40, 216473), (62, 139660), (124, 69830), (155, 55864), (248, 34915), (310, 27932), (620, 13966), (1240, 6983)]