19541980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{16561}}^1$

素因数の和:16629

約数の個数: 24

約数和(自身を含む): 41736240

約数和(自身を除く): 22194260

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 16561, 33122, 66244, 82805, 165610, 331220, 977099, 1954198, 3908396, 4885495, 9770990, 19541980]

約数ペア:

[(1, 19541980), (2, 9770990), (4, 4885495), (5, 3908396), (10, 1954198), (20, 977099), (59, 331220), (118, 165610), (236, 82805), (295, 66244), (590, 33122), (1180, 16561)]