20071792

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{571}}^1$

素因数の和:618

約数の個数: 40

約数和(自身を含む): 42202160

約数和(自身を除く): 22130368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 571, 676, 1142, 1352, 2197, 2284, 2704, 4394, 4568, 7423, 8788, 9136, 14846, 17576, 29692, 35152, 59384, 96499, 118768, 192998, 385996, 771992, 1254487, 1543984, 2508974, 5017948, 10035896, 20071792]

約数ペア:

[(1, 20071792), (2, 10035896), (4, 5017948), (8, 2508974), (13, 1543984), (16, 1254487), (26, 771992), (52, 385996), (104, 192998), (169, 118768), (208, 96499), (338, 59384), (571, 35152), (676, 29692), (1142, 17576), (1352, 14846), (2197, 9136), (2284, 8788), (2704, 7423), (4394, 4568)]