128157540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43591}}^1$

素因数の和:43617

約数の個数: 72

約数和(自身を含む): 417436992

約数和(自身を除く): 289279452

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 43591, 87182, 130773, 174364, 217955, 261546, 305137, 435910, 523092, 610274, 653865, 871820, 915411, 1220548, 1307730, 1525685, 1830822, 2135959, 2615460, 3051370, 3661644, 4271918, 4577055, 6102740, 6407877, 8543836, 9154110, 10679795, 12815754, 18308220, 21359590, 25631508, 32039385, 42719180, 64078770, 128157540]

約数ペア:

[(1, 128157540), (2, 64078770), (3, 42719180), (4, 32039385), (5, 25631508), (6, 21359590), (7, 18308220), (10, 12815754), (12, 10679795), (14, 9154110), (15, 8543836), (20, 6407877), (21, 6102740), (28, 4577055), (30, 4271918), (35, 3661644), (42, 3051370), (49, 2615460), (60, 2135959), (70, 1830822), (84, 1525685), (98, 1307730), (105, 1220548), (140, 915411), (147, 871820), (196, 653865), (210, 610274), (245, 523092), (294, 435910), (420, 305137), (490, 261546), (588, 217955), (735, 174364), (980, 130773), (1470, 87182), (2940, 43591)]