1640956875

素因数分解:

$3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{51481}}^1$

素因数の和:51521

約数の個数: 40

約数和(自身を含む): 2894935824

約数和(自身を除く): 1253978949

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 625, 1275, 1875, 2125, 6375, 10625, 31875, 51481, 154443, 257405, 772215, 875177, 1287025, 2625531, 3861075, 4375885, 6435125, 13127655, 19305375, 21879425, 32175625, 65638275, 96526875, 109397125, 328191375, 546985625, 1640956875]

約数ペア:

[(1, 1640956875), (3, 546985625), (5, 328191375), (15, 109397125), (17, 96526875), (25, 65638275), (51, 32175625), (75, 21879425), (85, 19305375), (125, 13127655), (255, 6435125), (375, 4375885), (425, 3861075), (625, 2625531), (1275, 1287025), (1875, 875177), (2125, 772215), (6375, 257405), (10625, 154443), (31875, 51481)]