259369360

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{5011}}^1$

素因数の和:5671

約数の個数: 40

約数和(自身を含む): 604086336

約数和(自身を除く): 344716976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 2588, 3235, 5011, 5176, 6470, 10022, 10352, 12940, 20044, 25055, 25880, 40088, 50110, 51760, 80176, 100220, 200440, 400880, 3242117, 6484234, 12968468, 16210585, 25936936, 32421170, 51873872, 64842340, 129684680, 259369360]

約数ペア:

[(1, 259369360), (2, 129684680), (4, 64842340), (5, 51873872), (8, 32421170), (10, 25936936), (16, 16210585), (20, 12968468), (40, 6484234), (80, 3242117), (647, 400880), (1294, 200440), (2588, 100220), (3235, 80176), (5011, 51760), (5176, 50110), (6470, 40088), (10022, 25880), (10352, 25055), (12940, 20044)]