64987665

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{421}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 107194752

約数和(自身を除く): 42207087

約数列:

[1, 3, 5, 15, 41, 123, 205, 251, 421, 615, 753, 1255, 1263, 2105, 3765, 6315, 10291, 17261, 30873, 51455, 51783, 86305, 105671, 154365, 258915, 317013, 528355, 1585065, 4332511, 12997533, 21662555, 64987665]

約数ペア:

[(1, 64987665), (3, 21662555), (5, 12997533), (15, 4332511), (41, 1585065), (123, 528355), (205, 317013), (251, 258915), (421, 154365), (615, 105671), (753, 86305), (1255, 51783), (1263, 51455), (2105, 30873), (3765, 17261), (6315, 10291)]