12499160

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3511}}^1$

素因数の和:3611

約数の個数: 32

約数和(自身を含む): 28447200

約数和(自身を除く): 15948040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3511, 3560, 7022, 14044, 17555, 28088, 35110, 70220, 140440, 312479, 624958, 1249916, 1562395, 2499832, 3124790, 6249580, 12499160]

約数ペア:

[(1, 12499160), (2, 6249580), (4, 3124790), (5, 2499832), (8, 1562395), (10, 1249916), (20, 624958), (40, 312479), (89, 140440), (178, 70220), (356, 35110), (445, 28088), (712, 17555), (890, 14044), (1780, 7022), (3511, 3560)]