25155320

素因数分解:

$2^3\times 5^1\times {\mathrm{709}}^1\times {\mathrm{887}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 56743200

約数和(自身を除く): 31587880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 709, 887, 1418, 1774, 2836, 3545, 3548, 4435, 5672, 7090, 7096, 8870, 14180, 17740, 28360, 35480, 628883, 1257766, 2515532, 3144415, 5031064, 6288830, 12577660, 25155320]

約数ペア:

[(1, 25155320), (2, 12577660), (4, 6288830), (5, 5031064), (8, 3144415), (10, 2515532), (20, 1257766), (40, 628883), (709, 35480), (887, 28360), (1418, 17740), (1774, 14180), (2836, 8870), (3545, 7096), (3548, 7090), (4435, 5672)]