15243920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2141}}^1$

素因数の和:2243

約数の個数: 40

約数和(自身を含む): 35857080

約数和(自身を除く): 20613160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 2141, 3560, 4282, 7120, 8564, 10705, 17128, 21410, 34256, 42820, 85640, 171280, 190549, 381098, 762196, 952745, 1524392, 1905490, 3048784, 3810980, 7621960, 15243920]

約数ペア:

[(1, 15243920), (2, 7621960), (4, 3810980), (5, 3048784), (8, 1905490), (10, 1524392), (16, 952745), (20, 762196), (40, 381098), (80, 190549), (89, 171280), (178, 85640), (356, 42820), (445, 34256), (712, 21410), (890, 17128), (1424, 10705), (1780, 8564), (2141, 7120), (3560, 4282)]