129631760

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{10321}}^1$

素因数の和:10491

約数の個数: 40

約数和(自身を含む): 303342936

約数和(自身を除く): 173711176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 10321, 12560, 20642, 41284, 51605, 82568, 103210, 165136, 206420, 412840, 825680, 1620397, 3240794, 6481588, 8101985, 12963176, 16203970, 25926352, 32407940, 64815880, 129631760]

約数ペア:

[(1, 129631760), (2, 64815880), (4, 32407940), (5, 25926352), (8, 16203970), (10, 12963176), (16, 8101985), (20, 6481588), (40, 3240794), (80, 1620397), (157, 825680), (314, 412840), (628, 206420), (785, 165136), (1256, 103210), (1570, 82568), (2512, 51605), (3140, 41284), (6280, 20642), (10321, 12560)]