278503820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{68597}}^1$

素因数の和:68642

約数の個数: 48

約数和(自身を含む): 691467840

約数和(自身を除く): 412964020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 68597, 137194, 274388, 342985, 480179, 685970, 960358, 1371940, 1920716, 1989313, 2400895, 3978626, 4801790, 7957252, 9603580, 9946565, 13925191, 19893130, 27850382, 39786260, 55700764, 69625955, 139251910, 278503820]

約数ペア:

[(1, 278503820), (2, 139251910), (4, 69625955), (5, 55700764), (7, 39786260), (10, 27850382), (14, 19893130), (20, 13925191), (28, 9946565), (29, 9603580), (35, 7957252), (58, 4801790), (70, 3978626), (116, 2400895), (140, 1989313), (145, 1920716), (203, 1371940), (290, 960358), (406, 685970), (580, 480179), (812, 342985), (1015, 274388), (2030, 137194), (4060, 68597)]