155577220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{719}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 338688000

約数和(自身を除く): 183110780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 349, 620, 698, 719, 1396, 1438, 1745, 2876, 3490, 3595, 6980, 7190, 10819, 14380, 21638, 22289, 43276, 44578, 54095, 89156, 108190, 111445, 216380, 222890, 250931, 445780, 501862, 1003724, 1254655, 2509310, 5018620, 7778861, 15557722, 31115444, 38894305, 77788610, 155577220]

約数ペア:

[(1, 155577220), (2, 77788610), (4, 38894305), (5, 31115444), (10, 15557722), (20, 7778861), (31, 5018620), (62, 2509310), (124, 1254655), (155, 1003724), (310, 501862), (349, 445780), (620, 250931), (698, 222890), (719, 216380), (1396, 111445), (1438, 108190), (1745, 89156), (2876, 54095), (3490, 44578), (3595, 43276), (6980, 22289), (7190, 21638), (10819, 14380)]