19791660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47123}}^1$

素因数の和:47142

約数の個数: 48

約数和(自身を含む): 63334656

約数和(自身を除く): 43542996

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, 47123, 94246, 141369, 188492, 235615, 282738, 329861, 471230, 565476, 659722, 706845, 942460, 989583, 1319444, 1413690, 1649305, 1979166, 2827380, 3298610, 3958332, 4947915, 6597220, 9895830, 19791660]

約数ペア:

[(1, 19791660), (2, 9895830), (3, 6597220), (4, 4947915), (5, 3958332), (6, 3298610), (7, 2827380), (10, 1979166), (12, 1649305), (14, 1413690), (15, 1319444), (20, 989583), (21, 942460), (28, 706845), (30, 659722), (35, 565476), (42, 471230), (60, 329861), (70, 282738), (84, 235615), (105, 188492), (140, 141369), (210, 94246), (420, 47123)]