12253520

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1721}}^1$

素因数の和:1823

約数の個数: 40

約数和(自身を含む): 28826280

約数和(自身を除く): 16572760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1721, 1780, 3442, 3560, 6884, 7120, 8605, 13768, 17210, 27536, 34420, 68840, 137680, 153169, 306338, 612676, 765845, 1225352, 1531690, 2450704, 3063380, 6126760, 12253520]

約数ペア:

[(1, 12253520), (2, 6126760), (4, 3063380), (5, 2450704), (8, 1531690), (10, 1225352), (16, 765845), (20, 612676), (40, 306338), (80, 153169), (89, 137680), (178, 68840), (356, 34420), (445, 27536), (712, 17210), (890, 13768), (1424, 8605), (1721, 7120), (1780, 6884), (3442, 3560)]