18112100

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2636

約数の個数: 36

約数和(自身を含む): 39872448

約数和(自身を除く): 21760348

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 2551, 3550, 5102, 7100, 10204, 12755, 25510, 51020, 63775, 127550, 181121, 255100, 362242, 724484, 905605, 1811210, 3622420, 4528025, 9056050, 18112100]

約数ペア:

[(1, 18112100), (2, 9056050), (4, 4528025), (5, 3622420), (10, 1811210), (20, 905605), (25, 724484), (50, 362242), (71, 255100), (100, 181121), (142, 127550), (284, 63775), (355, 51020), (710, 25510), (1420, 12755), (1775, 10204), (2551, 7100), (3550, 5102)]