174939740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1\times {\mathrm{353}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 374673600

約数和(自身を除く): 199733860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 349, 353, 355, 698, 706, 710, 1396, 1412, 1420, 1745, 1765, 3490, 3530, 6980, 7060, 24779, 25063, 49558, 50126, 99116, 100252, 123197, 123895, 125315, 246394, 247790, 250630, 492788, 495580, 501260, 615985, 1231970, 2463940, 8746987, 17493974, 34987948, 43734935, 87469870, 174939740]

約数ペア:

[(1, 174939740), (2, 87469870), (4, 43734935), (5, 34987948), (10, 17493974), (20, 8746987), (71, 2463940), (142, 1231970), (284, 615985), (349, 501260), (353, 495580), (355, 492788), (698, 250630), (706, 247790), (710, 246394), (1396, 125315), (1412, 123895), (1420, 123197), (1745, 100252), (1765, 99116), (3490, 50126), (3530, 49558), (6980, 25063), (7060, 24779)]