210319980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269641}}^1$

素因数の和:269666

約数の個数: 48

約数和(自身を含む): 634197984

約数和(自身を除く): 423878004

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, 269641, 539282, 808923, 1078564, 1348205, 1617846, 2696410, 3235692, 3505333, 4044615, 5392820, 7010666, 8089230, 10515999, 14021332, 16178460, 17526665, 21031998, 35053330, 42063996, 52579995, 70106660, 105159990, 210319980]

約数ペア:

[(1, 210319980), (2, 105159990), (3, 70106660), (4, 52579995), (5, 42063996), (6, 35053330), (10, 21031998), (12, 17526665), (13, 16178460), (15, 14021332), (20, 10515999), (26, 8089230), (30, 7010666), (39, 5392820), (52, 4044615), (60, 3505333), (65, 3235692), (78, 2696410), (130, 1617846), (156, 1348205), (195, 1078564), (260, 808923), (390, 539282), (780, 269641)]