20832820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{863}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 47029248

約数和(自身を除く): 26196428

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 863, 1207, 1420, 1726, 2414, 3452, 4315, 4828, 6035, 8630, 12070, 14671, 17260, 24140, 29342, 58684, 61273, 73355, 122546, 146710, 245092, 293420, 306365, 612730, 1041641, 1225460, 2083282, 4166564, 5208205, 10416410, 20832820]

約数ペア:

[(1, 20832820), (2, 10416410), (4, 5208205), (5, 4166564), (10, 2083282), (17, 1225460), (20, 1041641), (34, 612730), (68, 306365), (71, 293420), (85, 245092), (142, 146710), (170, 122546), (284, 73355), (340, 61273), (355, 58684), (710, 29342), (863, 24140), (1207, 17260), (1420, 14671), (1726, 12070), (2414, 8630), (3452, 6035), (4315, 4828)]