28520478

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{383}}^1$

素因数の和:598

約数の個数: 64

約数和(自身を含む): 72990720

約数和(自身を除く): 44470242

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 197, 378, 383, 394, 591, 766, 1149, 1182, 1379, 1773, 2298, 2681, 2758, 3447, 3546, 4137, 5319, 5362, 6894, 8043, 8274, 10341, 10638, 12411, 16086, 20682, 24129, 24822, 37233, 48258, 72387, 74466, 75451, 144774, 150902, 226353, 452706, 528157, 679059, 1056314, 1358118, 1584471, 2037177, 3168942, 4074354, 4753413, 9506826, 14260239, 28520478]

約数ペア:

[(1, 28520478), (2, 14260239), (3, 9506826), (6, 4753413), (7, 4074354), (9, 3168942), (14, 2037177), (18, 1584471), (21, 1358118), (27, 1056314), (42, 679059), (54, 528157), (63, 452706), (126, 226353), (189, 150902), (197, 144774), (378, 75451), (383, 74466), (394, 72387), (591, 48258), (766, 37233), (1149, 24822), (1182, 24129), (1379, 20682), (1773, 16086), (2298, 12411), (2681, 10638), (2758, 10341), (3447, 8274), (3546, 8043), (4137, 6894), (5319, 5362)]