1677802640

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{21163}}^1$

素因数の和:22167

約数の個数: 40

約数和(自身を含む): 3905011968

約数和(自身を除く): 2227209328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1982, 3964, 4955, 7928, 9910, 15856, 19820, 21163, 39640, 42326, 79280, 84652, 105815, 169304, 211630, 338608, 423260, 846520, 1693040, 20972533, 41945066, 83890132, 104862665, 167780264, 209725330, 335560528, 419450660, 838901320, 1677802640]

約数ペア:

[(1, 1677802640), (2, 838901320), (4, 419450660), (5, 335560528), (8, 209725330), (10, 167780264), (16, 104862665), (20, 83890132), (40, 41945066), (80, 20972533), (991, 1693040), (1982, 846520), (3964, 423260), (4955, 338608), (7928, 211630), (9910, 169304), (15856, 105815), (19820, 84652), (21163, 79280), (39640, 42326)]