28642760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23099}}^1$

素因数の和:23141

約数の個数: 32

約数和(自身を含む): 66528000

約数和(自身を除く): 37885240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 23099, 46198, 92396, 115495, 184792, 230990, 461980, 716069, 923960, 1432138, 2864276, 3580345, 5728552, 7160690, 14321380, 28642760]

約数ペア:

[(1, 28642760), (2, 14321380), (4, 7160690), (5, 5728552), (8, 3580345), (10, 2864276), (20, 1432138), (31, 923960), (40, 716069), (62, 461980), (124, 230990), (155, 184792), (248, 115495), (310, 92396), (620, 46198), (1240, 23099)]