1289416

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 2700000

約数和(自身を除く): 1410584

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 499, 646, 998, 1292, 1996, 2584, 3992, 8483, 9481, 16966, 18962, 33932, 37924, 67864, 75848, 161177, 322354, 644708, 1289416]

約数ペア:

[(1, 1289416), (2, 644708), (4, 322354), (8, 161177), (17, 75848), (19, 67864), (34, 37924), (38, 33932), (68, 18962), (76, 16966), (136, 9481), (152, 8483), (323, 3992), (499, 2584), (646, 1996), (998, 1292)]