84564820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1601}}^1$

素因数の和:1768

約数の個数: 48

約数和(自身を含む): 188395200

約数和(自身を除く): 103830380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1390, 1601, 2641, 2780, 3202, 5282, 6404, 8005, 10564, 13205, 16010, 26410, 30419, 32020, 52820, 60838, 121676, 152095, 222539, 304190, 445078, 608380, 890156, 1112695, 2225390, 4228241, 4450780, 8456482, 16912964, 21141205, 42282410, 84564820]

約数ペア:

[(1, 84564820), (2, 42282410), (4, 21141205), (5, 16912964), (10, 8456482), (19, 4450780), (20, 4228241), (38, 2225390), (76, 1112695), (95, 890156), (139, 608380), (190, 445078), (278, 304190), (380, 222539), (556, 152095), (695, 121676), (1390, 60838), (1601, 52820), (2641, 32020), (2780, 30419), (3202, 26410), (5282, 16010), (6404, 13205), (8005, 10564)]