8451660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{20123}}^1$

素因数の和:20142

約数の個数: 48

約数和(自身を含む): 27046656

約数和(自身を除く): 18594996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 20123, 40246, 60369, 80492, 100615, 120738, 140861, 201230, 241476, 281722, 301845, 402460, 422583, 563444, 603690, 704305, 845166, 1207380, 1408610, 1690332, 2112915, 2817220, 4225830, 8451660]

約数ペア:

[(1, 8451660), (2, 4225830), (3, 2817220), (4, 2112915), (5, 1690332), (6, 1408610), (7, 1207380), (10, 845166), (12, 704305), (14, 603690), (15, 563444), (20, 422583), (21, 402460), (28, 301845), (30, 281722), (35, 241476), (42, 201230), (60, 140861), (70, 120738), (84, 100615), (105, 80492), (140, 60369), (210, 40246), (420, 20123)]