28771100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{9281}}^1$

素因数の和:9326

約数の個数: 36

約数和(自身を含む): 64454208

約数和(自身を除く): 35683108

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 9281, 18562, 37124, 46405, 92810, 185620, 232025, 287711, 464050, 575422, 928100, 1150844, 1438555, 2877110, 5754220, 7192775, 14385550, 28771100]

約数ペア:

[(1, 28771100), (2, 14385550), (4, 7192775), (5, 5754220), (10, 2877110), (20, 1438555), (25, 1150844), (31, 928100), (50, 575422), (62, 464050), (100, 287711), (124, 232025), (155, 185620), (310, 92810), (620, 46405), (775, 37124), (1550, 18562), (3100, 9281)]