25511780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1223}}^1$

素因数の和:1388

約数の個数: 48

約数和(自身を含む): 61689600

約数和(自身を除く): 36177820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1223, 1490, 2086, 2446, 2980, 4172, 4892, 5215, 6115, 8561, 10430, 12230, 17122, 20860, 24460, 34244, 42805, 85610, 171220, 182227, 364454, 728908, 911135, 1275589, 1822270, 2551178, 3644540, 5102356, 6377945, 12755890, 25511780]

約数ペア:

[(1, 25511780), (2, 12755890), (4, 6377945), (5, 5102356), (7, 3644540), (10, 2551178), (14, 1822270), (20, 1275589), (28, 911135), (35, 728908), (70, 364454), (140, 182227), (149, 171220), (298, 85610), (596, 42805), (745, 34244), (1043, 24460), (1223, 20860), (1490, 17122), (2086, 12230), (2446, 10430), (2980, 8561), (4172, 6115), (4892, 5215)]