12945040

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1571}}^1$

素因数の和:1687

約数の個数: 40

約数和(自身を含む): 30408768

約数和(自身を除く): 17463728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1571, 1648, 2060, 3142, 4120, 6284, 7855, 8240, 12568, 15710, 25136, 31420, 62840, 125680, 161813, 323626, 647252, 809065, 1294504, 1618130, 2589008, 3236260, 6472520, 12945040]

約数ペア:

[(1, 12945040), (2, 6472520), (4, 3236260), (5, 2589008), (8, 1618130), (10, 1294504), (16, 809065), (20, 647252), (40, 323626), (80, 161813), (103, 125680), (206, 62840), (412, 31420), (515, 25136), (824, 15710), (1030, 12568), (1571, 8240), (1648, 7855), (2060, 6284), (3142, 4120)]