28272280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11587}}^1$

素因数の和:11659

約数の個数: 32

約数和(自身を含む): 64661040

約数和(自身を除く): 36388760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11587, 23174, 46348, 57935, 92696, 115870, 231740, 463480, 706807, 1413614, 2827228, 3534035, 5654456, 7068070, 14136140, 28272280]

約数ペア:

[(1, 28272280), (2, 14136140), (4, 7068070), (5, 5654456), (8, 3534035), (10, 2827228), (20, 1413614), (40, 706807), (61, 463480), (122, 231740), (244, 115870), (305, 92696), (488, 57935), (610, 46348), (1220, 23174), (2440, 11587)]