64840215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2503}}^1$

素因数の和:2679

約数の個数: 32

約数和(自身を含む): 113942016

約数和(自身を除く): 49101801

約数列:

[1, 3, 5, 11, 15, 33, 55, 157, 165, 471, 785, 1727, 2355, 2503, 5181, 7509, 8635, 12515, 25905, 27533, 37545, 82599, 137665, 392971, 412995, 1178913, 1964855, 4322681, 5894565, 12968043, 21613405, 64840215]

約数ペア:

[(1, 64840215), (3, 21613405), (5, 12968043), (11, 5894565), (15, 4322681), (33, 1964855), (55, 1178913), (157, 412995), (165, 392971), (471, 137665), (785, 82599), (1727, 37545), (2355, 27533), (2503, 25905), (5181, 12515), (7509, 8635)]