1296800

素因数分解:

$2^5\times 5^2\times {\mathrm{1621}}^1$

素因数の和:1641

約数の個数: 36

約数和(自身を含む): 3167766

約数和(自身を除く): 1870966

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 1621, 3242, 6484, 8105, 12968, 16210, 25936, 32420, 40525, 51872, 64840, 81050, 129680, 162100, 259360, 324200, 648400, 1296800]

約数ペア:

[(1, 1296800), (2, 648400), (4, 324200), (5, 259360), (8, 162100), (10, 129680), (16, 81050), (20, 64840), (25, 51872), (32, 40525), (40, 32420), (50, 25936), (80, 16210), (100, 12968), (160, 8105), (200, 6484), (400, 3242), (800, 1621)]