1293680

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:273

約数の個数: 40

約数和(自身を含む): 3056352

約数和(自身を除く): 1762672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 157, 206, 314, 412, 515, 628, 785, 824, 1030, 1256, 1570, 1648, 2060, 2512, 3140, 4120, 6280, 8240, 12560, 16171, 32342, 64684, 80855, 129368, 161710, 258736, 323420, 646840, 1293680]

約数ペア:

[(1, 1293680), (2, 646840), (4, 323420), (5, 258736), (8, 161710), (10, 129368), (16, 80855), (20, 64684), (40, 32342), (80, 16171), (103, 12560), (157, 8240), (206, 6280), (314, 4120), (412, 3140), (515, 2512), (628, 2060), (785, 1648), (824, 1570), (1030, 1256)]