25981620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61861}}^1$

素因数の和:61880

約数の個数: 48

約数和(自身を含む): 83142528

約数和(自身を除く): 57160908

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, 61861, 123722, 185583, 247444, 309305, 371166, 433027, 618610, 742332, 866054, 927915, 1237220, 1299081, 1732108, 1855830, 2165135, 2598162, 3711660, 4330270, 5196324, 6495405, 8660540, 12990810, 25981620]

約数ペア:

[(1, 25981620), (2, 12990810), (3, 8660540), (4, 6495405), (5, 5196324), (6, 4330270), (7, 3711660), (10, 2598162), (12, 2165135), (14, 1855830), (15, 1732108), (20, 1299081), (21, 1237220), (28, 927915), (30, 866054), (35, 742332), (42, 618610), (60, 433027), (70, 371166), (84, 309305), (105, 247444), (140, 185583), (210, 123722), (420, 61861)]