15870660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20347}}^1$

素因数の和:20372

約数の個数: 48

約数和(自身を含む): 47858496

約数和(自身を除く): 31987836

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, 20347, 40694, 61041, 81388, 101735, 122082, 203470, 244164, 264511, 305205, 406940, 529022, 610410, 793533, 1058044, 1220820, 1322555, 1587066, 2645110, 3174132, 3967665, 5290220, 7935330, 15870660]

約数ペア:

[(1, 15870660), (2, 7935330), (3, 5290220), (4, 3967665), (5, 3174132), (6, 2645110), (10, 1587066), (12, 1322555), (13, 1220820), (15, 1058044), (20, 793533), (26, 610410), (30, 529022), (39, 406940), (52, 305205), (60, 264511), (65, 244164), (78, 203470), (130, 122082), (156, 101735), (195, 81388), (260, 61041), (390, 40694), (780, 20347)]