15690740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2081}}^1$

素因数の和:2132

約数の個数: 48

約数和(自身を含む): 36726480

約数和(自身を除く): 21035740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2081, 3770, 4162, 7540, 8324, 10405, 20810, 27053, 41620, 54106, 60349, 108212, 120698, 135265, 241396, 270530, 301745, 541060, 603490, 784537, 1206980, 1569074, 3138148, 3922685, 7845370, 15690740]

約数ペア:

[(1, 15690740), (2, 7845370), (4, 3922685), (5, 3138148), (10, 1569074), (13, 1206980), (20, 784537), (26, 603490), (29, 541060), (52, 301745), (58, 270530), (65, 241396), (116, 135265), (130, 120698), (145, 108212), (260, 60349), (290, 54106), (377, 41620), (580, 27053), (754, 20810), (1508, 10405), (1885, 8324), (2081, 7540), (3770, 4162)]