1997698905

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{293}}^1\times {\mathrm{1471}}^1$

素因数の和:1878

約数の個数: 48

約数和(自身を含む): 3510614016

約数和(自身を除く): 1512915111

約数列:

[1, 3, 5, 9, 15, 45, 103, 293, 309, 515, 879, 927, 1465, 1471, 1545, 2637, 4395, 4413, 4635, 7355, 13185, 13239, 22065, 30179, 66195, 90537, 150895, 151513, 271611, 431003, 452685, 454539, 757565, 1293009, 1358055, 1363617, 2155015, 2272695, 3879027, 6465045, 6818085, 19395135, 44393309, 133179927, 221966545, 399539781, 665899635, 1997698905]

約数ペア:

[(1, 1997698905), (3, 665899635), (5, 399539781), (9, 221966545), (15, 133179927), (45, 44393309), (103, 19395135), (293, 6818085), (309, 6465045), (515, 3879027), (879, 2272695), (927, 2155015), (1465, 1363617), (1471, 1358055), (1545, 1293009), (2637, 757565), (4395, 454539), (4413, 452685), (4635, 431003), (7355, 271611), (13185, 151513), (13239, 150895), (22065, 90537), (30179, 66195)]