28196440

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5381}}^1$

素因数の和:5523

約数の個数: 32

約数和(自身を含む): 63938160

約数和(自身を除く): 35741720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5381, 10762, 21524, 26905, 43048, 53810, 107620, 215240, 704911, 1409822, 2819644, 3524555, 5639288, 7049110, 14098220, 28196440]

約数ペア:

[(1, 28196440), (2, 14098220), (4, 7049110), (5, 5639288), (8, 3524555), (10, 2819644), (20, 1409822), (40, 704911), (131, 215240), (262, 107620), (524, 53810), (655, 43048), (1048, 26905), (1310, 21524), (2620, 10762), (5240, 5381)]