76780760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{619}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 198201600

約数和(自身を除く): 121420840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 443, 619, 886, 1238, 1772, 2215, 2476, 3095, 3101, 3544, 4333, 4430, 4952, 6190, 6202, 8666, 8860, 12380, 12404, 15505, 17332, 17720, 21665, 24760, 24808, 31010, 34664, 43330, 62020, 86660, 124040, 173320, 274217, 548434, 1096868, 1371085, 1919519, 2193736, 2742170, 3839038, 5484340, 7678076, 9597595, 10968680, 15356152, 19195190, 38390380, 76780760]

約数ペア:

[(1, 76780760), (2, 38390380), (4, 19195190), (5, 15356152), (7, 10968680), (8, 9597595), (10, 7678076), (14, 5484340), (20, 3839038), (28, 2742170), (35, 2193736), (40, 1919519), (56, 1371085), (70, 1096868), (140, 548434), (280, 274217), (443, 173320), (619, 124040), (886, 86660), (1238, 62020), (1772, 43330), (2215, 34664), (2476, 31010), (3095, 24808), (3101, 24760), (3544, 21665), (4333, 17720), (4430, 17332), (4952, 15505), (6190, 12404), (6202, 12380), (8666, 8860)]