278468440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{240059}}^1$

素因数の和:240099

約数の個数: 32

約数和(自身を含む): 648162000

約数和(自身を除く): 369693560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 240059, 480118, 960236, 1200295, 1920472, 2400590, 4801180, 6961711, 9602360, 13923422, 27846844, 34808555, 55693688, 69617110, 139234220, 278468440]

約数ペア:

[(1, 278468440), (2, 139234220), (4, 69617110), (5, 55693688), (8, 34808555), (10, 27846844), (20, 13923422), (29, 9602360), (40, 6961711), (58, 4801180), (116, 2400590), (145, 1920472), (232, 1200295), (290, 960236), (580, 480118), (1160, 240059)]