20018446640

素因数分解:

$2^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{1073951}}^1$

素因数の和:1074197

約数の個数: 40

約数和(自身を含む): 46742686848

約数和(自身を除く): 26724240208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233, 466, 932, 1165, 1864, 2330, 3728, 4660, 9320, 18640, 1073951, 2147902, 4295804, 5369755, 8591608, 10739510, 17183216, 21479020, 42958040, 85916080, 250230583, 500461166, 1000922332, 1251152915, 2001844664, 2502305830, 4003689328, 5004611660, 10009223320, 20018446640]

約数ペア:

[(1, 20018446640), (2, 10009223320), (4, 5004611660), (5, 4003689328), (8, 2502305830), (10, 2001844664), (16, 1251152915), (20, 1000922332), (40, 500461166), (80, 250230583), (233, 85916080), (466, 42958040), (932, 21479020), (1165, 17183216), (1864, 10739510), (2330, 8591608), (3728, 5369755), (4660, 4295804), (9320, 2147902), (18640, 1073951)]