639044

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{787}}^1$

素因数の和:827

約数の個数: 24

約数和(自身を含む): 1323840

約数和(自身を除く): 684796

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 787, 812, 1574, 3148, 5509, 11018, 22036, 22823, 45646, 91292, 159761, 319522, 639044]

約数ペア:

[(1, 639044), (2, 319522), (4, 159761), (7, 91292), (14, 45646), (28, 22823), (29, 22036), (58, 11018), (116, 5509), (203, 3148), (406, 1574), (787, 812)]