15990615

素因数分解:

$3^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:171

約数の個数: 56

約数和(自身を含む): 29747088

約数和(自身を除く): 13756473

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 107, 123, 135, 205, 243, 321, 369, 405, 535, 615, 729, 963, 1107, 1215, 1605, 1845, 2889, 3321, 3645, 4387, 4815, 5535, 8667, 9963, 13161, 14445, 16605, 21935, 26001, 29889, 39483, 43335, 49815, 65805, 78003, 118449, 130005, 149445, 197415, 355347, 390015, 592245, 1066041, 1776735, 3198123, 5330205, 15990615]

約数ペア:

[(1, 15990615), (3, 5330205), (5, 3198123), (9, 1776735), (15, 1066041), (27, 592245), (41, 390015), (45, 355347), (81, 197415), (107, 149445), (123, 130005), (135, 118449), (205, 78003), (243, 65805), (321, 49815), (369, 43335), (405, 39483), (535, 29889), (615, 26001), (729, 21935), (963, 16605), (1107, 14445), (1215, 13161), (1605, 9963), (1845, 8667), (2889, 5535), (3321, 4815), (3645, 4387)]