20267450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{733}}^1$

素因数の和:831

約数の個数: 48

約数和(自身を含む): 43687680

約数和(自身を除く): 23420230

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 79, 158, 175, 350, 395, 553, 733, 790, 1106, 1466, 1975, 2765, 3665, 3950, 5131, 5530, 7330, 10262, 13825, 18325, 25655, 27650, 36650, 51310, 57907, 115814, 128275, 256550, 289535, 405349, 579070, 810698, 1447675, 2026745, 2895350, 4053490, 10133725, 20267450]

約数ペア:

[(1, 20267450), (2, 10133725), (5, 4053490), (7, 2895350), (10, 2026745), (14, 1447675), (25, 810698), (35, 579070), (50, 405349), (70, 289535), (79, 256550), (158, 128275), (175, 115814), (350, 57907), (395, 51310), (553, 36650), (733, 27650), (790, 25655), (1106, 18325), (1466, 13825), (1975, 10262), (2765, 7330), (3665, 5530), (3950, 5131)]