128840365

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1117}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 173871360

約数和(自身を除く): 45030995

約数列:

[1, 5, 17, 23, 59, 85, 115, 295, 391, 1003, 1117, 1357, 1955, 5015, 5585, 6785, 18989, 23069, 25691, 65903, 94945, 115345, 128455, 329515, 436747, 1120351, 1515769, 2183735, 5601755, 7578845, 25768073, 128840365]

約数ペア:

[(1, 128840365), (5, 25768073), (17, 7578845), (23, 5601755), (59, 2183735), (85, 1515769), (115, 1120351), (295, 436747), (391, 329515), (1003, 128455), (1117, 115345), (1357, 94945), (1955, 65903), (5015, 25691), (5585, 23069), (6785, 18989)]