1681480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 3824640

約数和(自身を除く): 2143160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 331, 508, 635, 662, 1016, 1270, 1324, 1655, 2540, 2648, 3310, 5080, 6620, 13240, 42037, 84074, 168148, 210185, 336296, 420370, 840740, 1681480]

約数ペア:

[(1, 1681480), (2, 840740), (4, 420370), (5, 336296), (8, 210185), (10, 168148), (20, 84074), (40, 42037), (127, 13240), (254, 6620), (331, 5080), (508, 3310), (635, 2648), (662, 2540), (1016, 1655), (1270, 1324)]