19123640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28123}}^1$

素因数の和:28151

約数の個数: 32

約数和(自身を含む): 45560880

約数和(自身を除く): 26437240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28123, 56246, 112492, 140615, 224984, 281230, 478091, 562460, 956182, 1124920, 1912364, 2390455, 3824728, 4780910, 9561820, 19123640]

約数ペア:

[(1, 19123640), (2, 9561820), (4, 4780910), (5, 3824728), (8, 2390455), (10, 1912364), (17, 1124920), (20, 956182), (34, 562460), (40, 478091), (68, 281230), (85, 224984), (136, 140615), (170, 112492), (340, 56246), (680, 28123)]