30991402

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 51710400

約数和(自身を除く): 20718998

約数列:

[1, 2, 13, 26, 59, 89, 118, 178, 227, 454, 767, 1157, 1534, 2314, 2951, 5251, 5902, 10502, 13393, 20203, 26786, 40406, 68263, 136526, 174109, 262639, 348218, 525278, 1191977, 2383954, 15495701, 30991402]

約数ペア:

[(1, 30991402), (2, 15495701), (13, 2383954), (26, 1191977), (59, 525278), (89, 348218), (118, 262639), (178, 174109), (227, 136526), (454, 68263), (767, 40406), (1157, 26786), (1534, 20203), (2314, 13393), (2951, 10502), (5251, 5902)]