40639714

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{997}}^1$

素因数の和:1317

約数の個数: 16

約数和(自身を含む): 61975800

約数和(自身を除く): 21336086

約数列:

[1, 2, 89, 178, 229, 458, 997, 1994, 20381, 40762, 88733, 177466, 228313, 456626, 20319857, 40639714]

約数ペア:

[(1, 40639714), (2, 20319857), (89, 456626), (178, 228313), (229, 177466), (458, 88733), (997, 40762), (1994, 20381)]