20727320

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2713}}^1$

素因数の和:2915

約数の個数: 32

約数和(自身を含む): 46897920

約数和(自身を除く): 26170600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2713, 3820, 5426, 7640, 10852, 13565, 21704, 27130, 54260, 108520, 518183, 1036366, 2072732, 2590915, 4145464, 5181830, 10363660, 20727320]

約数ペア:

[(1, 20727320), (2, 10363660), (4, 5181830), (5, 4145464), (8, 2590915), (10, 2072732), (20, 1036366), (40, 518183), (191, 108520), (382, 54260), (764, 27130), (955, 21704), (1528, 13565), (1910, 10852), (2713, 7640), (3820, 5426)]