12728380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{90917}}^1$

素因数の和:90933

約数の個数: 24

約数和(自身を含む): 30548448

約数和(自身を除く): 17820068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 90917, 181834, 363668, 454585, 636419, 909170, 1272838, 1818340, 2545676, 3182095, 6364190, 12728380]

約数ペア:

[(1, 12728380), (2, 6364190), (4, 3182095), (5, 2545676), (7, 1818340), (10, 1272838), (14, 909170), (20, 636419), (28, 454585), (35, 363668), (70, 181834), (140, 90917)]