661904912

素因数分解:

$2^4\times {\mathrm{373}}^1\times {\mathrm{110909}}^1$

素因数の和:111290

約数の個数: 20

約数和(自身を含む): 1285890540

約数和(自身を除く): 623985628

約数列:

[1, 2, 4, 8, 16, 373, 746, 1492, 2984, 5968, 110909, 221818, 443636, 887272, 1774544, 41369057, 82738114, 165476228, 330952456, 661904912]

約数ペア:

[(1, 661904912), (2, 330952456), (4, 165476228), (8, 82738114), (16, 41369057), (373, 1774544), (746, 887272), (1492, 443636), (2984, 221818), (5968, 110909)]