18012100

素因数分解:

$2^2\times 5^2\times {\mathrm{281}}^1\times {\mathrm{641}}^1$

素因数の和:936

約数の個数: 36

約数和(自身を含む): 39286548

約数和(自身を除く): 21274448

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 281, 562, 641, 1124, 1282, 1405, 2564, 2810, 3205, 5620, 6410, 7025, 12820, 14050, 16025, 28100, 32050, 64100, 180121, 360242, 720484, 900605, 1801210, 3602420, 4503025, 9006050, 18012100]

約数ペア:

[(1, 18012100), (2, 9006050), (4, 4503025), (5, 3602420), (10, 1801210), (20, 900605), (25, 720484), (50, 360242), (100, 180121), (281, 64100), (562, 32050), (641, 28100), (1124, 16025), (1282, 14050), (1405, 12820), (2564, 7025), (2810, 6410), (3205, 5620)]