78377440

素因数分解:

$2^5\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1091}}^1$

素因数の和:1555

約数の個数: 48

約数和(自身を含む): 185749200

約数和(自身を除く): 107371760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 449, 898, 1091, 1796, 2182, 2245, 3592, 4364, 4490, 5455, 7184, 8728, 8980, 10910, 14368, 17456, 17960, 21820, 34912, 35920, 43640, 71840, 87280, 174560, 489859, 979718, 1959436, 2449295, 3918872, 4898590, 7837744, 9797180, 15675488, 19594360, 39188720, 78377440]

約数ペア:

[(1, 78377440), (2, 39188720), (4, 19594360), (5, 15675488), (8, 9797180), (10, 7837744), (16, 4898590), (20, 3918872), (32, 2449295), (40, 1959436), (80, 979718), (160, 489859), (449, 174560), (898, 87280), (1091, 71840), (1796, 43640), (2182, 35920), (2245, 34912), (3592, 21820), (4364, 17960), (4490, 17456), (5455, 14368), (7184, 10910), (8728, 8980)]