201938180

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{6781}}^1$

素因数の和:8279

約数の個数: 24

約数和(自身を含む): 424417560

約数和(自身を除く): 222479380

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 5956, 6781, 7445, 13562, 14890, 27124, 29780, 33905, 67810, 135620, 10096909, 20193818, 40387636, 50484545, 100969090, 201938180]

約数ペア:

[(1, 201938180), (2, 100969090), (4, 50484545), (5, 40387636), (10, 20193818), (20, 10096909), (1489, 135620), (2978, 67810), (5956, 33905), (6781, 29780), (7445, 27124), (13562, 14890)]