678440165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{2389}}^1$

素因数の和:2681

約数の個数: 32

約数和(自身を含む): 932329440

約数和(自身を除く): 253889275

約数列:

[1, 5, 13, 17, 65, 85, 221, 257, 1105, 1285, 2389, 3341, 4369, 11945, 16705, 21845, 31057, 40613, 56797, 155285, 203065, 283985, 527969, 613973, 2639845, 3069865, 7981649, 10437541, 39908245, 52187705, 135688033, 678440165]

約数ペア:

[(1, 678440165), (5, 135688033), (13, 52187705), (17, 39908245), (65, 10437541), (85, 7981649), (221, 3069865), (257, 2639845), (1105, 613973), (1285, 527969), (2389, 283985), (3341, 203065), (4369, 155285), (11945, 56797), (16705, 40613), (21845, 31057)]