19831540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^2\times {\mathrm{353}}^1$

素因数の和:468

約数の個数: 36

約数和(自身を含む): 42567084

約数和(自身を除く): 22735544

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 353, 530, 706, 1060, 1412, 1765, 2809, 3530, 5618, 7060, 11236, 14045, 18709, 28090, 37418, 56180, 74836, 93545, 187090, 374180, 991577, 1983154, 3966308, 4957885, 9915770, 19831540]

約数ペア:

[(1, 19831540), (2, 9915770), (4, 4957885), (5, 3966308), (10, 1983154), (20, 991577), (53, 374180), (106, 187090), (212, 93545), (265, 74836), (353, 56180), (530, 37418), (706, 28090), (1060, 18709), (1412, 14045), (1765, 11236), (2809, 7060), (3530, 5618)]