16972100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3947}}^1$

素因数の和:4004

約数の個数: 36

約数和(自身を含む): 37695504

約数和(自身を除く): 20723404

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 3947, 4300, 7894, 15788, 19735, 39470, 78940, 98675, 169721, 197350, 339442, 394700, 678884, 848605, 1697210, 3394420, 4243025, 8486050, 16972100]

約数ペア:

[(1, 16972100), (2, 8486050), (4, 4243025), (5, 3394420), (10, 1697210), (20, 848605), (25, 678884), (43, 394700), (50, 339442), (86, 197350), (100, 169721), (172, 98675), (215, 78940), (430, 39470), (860, 19735), (1075, 15788), (2150, 7894), (3947, 4300)]