19795480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 48327840

約数和(自身を除く): 28532360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 677, 680, 731, 860, 1354, 1462, 1720, 2708, 2924, 3385, 3655, 5416, 5848, 6770, 7310, 11509, 13540, 14620, 23018, 27080, 29111, 29240, 46036, 57545, 58222, 92072, 115090, 116444, 145555, 230180, 232888, 291110, 460360, 494887, 582220, 989774, 1164440, 1979548, 2474435, 3959096, 4948870, 9897740, 19795480]

約数ペア:

[(1, 19795480), (2, 9897740), (4, 4948870), (5, 3959096), (8, 2474435), (10, 1979548), (17, 1164440), (20, 989774), (34, 582220), (40, 494887), (43, 460360), (68, 291110), (85, 232888), (86, 230180), (136, 145555), (170, 116444), (172, 115090), (215, 92072), (340, 58222), (344, 57545), (430, 46036), (677, 29240), (680, 29111), (731, 27080), (860, 23018), (1354, 14620), (1462, 13540), (1720, 11509), (2708, 7310), (2924, 6770), (3385, 5848), (3655, 5416)]