28291220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45631}}^1$

素因数の和:45671

約数の個数: 24

約数和(自身を含む): 61329408

約数和(自身を除く): 33038188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 45631, 91262, 182524, 228155, 456310, 912620, 1414561, 2829122, 5658244, 7072805, 14145610, 28291220]

約数ペア:

[(1, 28291220), (2, 14145610), (4, 7072805), (5, 5658244), (10, 2829122), (20, 1414561), (31, 912620), (62, 456310), (124, 228155), (155, 182524), (310, 91262), (620, 45631)]