1644580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{691}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 4185216

約数和(自身を除く): 2540636

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 691, 1190, 1382, 2380, 2764, 3455, 4837, 6910, 9674, 11747, 13820, 19348, 23494, 24185, 46988, 48370, 58735, 82229, 96740, 117470, 164458, 234940, 328916, 411145, 822290, 1644580]

約数ペア:

[(1, 1644580), (2, 822290), (4, 411145), (5, 328916), (7, 234940), (10, 164458), (14, 117470), (17, 96740), (20, 82229), (28, 58735), (34, 48370), (35, 46988), (68, 24185), (70, 23494), (85, 19348), (119, 13820), (140, 11747), (170, 9674), (238, 6910), (340, 4837), (476, 3455), (595, 2764), (691, 2380), (1190, 1382)]