1640756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 3128160

約数和(自身を除く): 1487404

約数列:

[1, 2, 4, 13, 26, 52, 139, 227, 278, 454, 556, 908, 1807, 2951, 3614, 5902, 7228, 11804, 31553, 63106, 126212, 410189, 820378, 1640756]

約数ペア:

[(1, 1640756), (2, 820378), (4, 410189), (13, 126212), (26, 63106), (52, 31553), (139, 11804), (227, 7228), (278, 5902), (454, 3614), (556, 2951), (908, 1807)]