389621530

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1\times {\mathrm{1381}}^1$

素因数の和:1794

約数の個数: 32

約数和(自身を含む): 711951120

約数和(自身を除く): 322329590

約数列:

[1, 2, 5, 10, 89, 178, 317, 445, 634, 890, 1381, 1585, 2762, 3170, 6905, 13810, 28213, 56426, 122909, 141065, 245818, 282130, 437777, 614545, 875554, 1229090, 2188885, 4377770, 38962153, 77924306, 194810765, 389621530]

約数ペア:

[(1, 389621530), (2, 194810765), (5, 77924306), (10, 38962153), (89, 4377770), (178, 2188885), (317, 1229090), (445, 875554), (634, 614545), (890, 437777), (1381, 282130), (1585, 245818), (2762, 141065), (3170, 122909), (6905, 56426), (13810, 28213)]