1288992020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{223009}}^1$

素因数の和:223052

約数の個数: 36

約数和(自身を含む): 2875490940

約数和(自身を除く): 1586498920

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 223009, 446018, 892036, 1115045, 2230090, 3791153, 4460180, 7582306, 15164612, 18955765, 37911530, 64449601, 75823060, 128899202, 257798404, 322248005, 644496010, 1288992020]

約数ペア:

[(1, 1288992020), (2, 644496010), (4, 322248005), (5, 257798404), (10, 128899202), (17, 75823060), (20, 64449601), (34, 37911530), (68, 18955765), (85, 15164612), (170, 7582306), (289, 4460180), (340, 3791153), (578, 2230090), (1156, 1115045), (1445, 892036), (2890, 446018), (5780, 223009)]