613880

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 1404000

約数和(自身を除く): 790120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 149, 206, 298, 412, 515, 596, 745, 824, 1030, 1192, 1490, 2060, 2980, 4120, 5960, 15347, 30694, 61388, 76735, 122776, 153470, 306940, 613880]

約数ペア:

[(1, 613880), (2, 306940), (4, 153470), (5, 122776), (8, 76735), (10, 61388), (20, 30694), (40, 15347), (103, 5960), (149, 4120), (206, 2980), (298, 2060), (412, 1490), (515, 1192), (596, 1030), (745, 824)]