668460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{857}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 2018016

約数和(自身を除く): 1349556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 857, 1714, 2571, 3428, 4285, 5142, 8570, 10284, 11141, 12855, 17140, 22282, 25710, 33423, 44564, 51420, 55705, 66846, 111410, 133692, 167115, 222820, 334230, 668460]

約数ペア:

[(1, 668460), (2, 334230), (3, 222820), (4, 167115), (5, 133692), (6, 111410), (10, 66846), (12, 55705), (13, 51420), (15, 44564), (20, 33423), (26, 25710), (30, 22282), (39, 17140), (52, 12855), (60, 11141), (65, 10284), (78, 8570), (130, 5142), (156, 4285), (195, 3428), (260, 2571), (390, 1714), (780, 857)]