77428820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11287}}^1$

素因数の和:11317

約数の個数: 48

約数和(自身を含む): 189638400

約数和(自身を除く): 112209580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11287, 22574, 45148, 56435, 79009, 112870, 158018, 225740, 316036, 395045, 553063, 790090, 1106126, 1580180, 2212252, 2765315, 3871441, 5530630, 7742882, 11061260, 15485764, 19357205, 38714410, 77428820]

約数ペア:

[(1, 77428820), (2, 38714410), (4, 19357205), (5, 15485764), (7, 11061260), (10, 7742882), (14, 5530630), (20, 3871441), (28, 2765315), (35, 2212252), (49, 1580180), (70, 1106126), (98, 790090), (140, 553063), (196, 395045), (245, 316036), (343, 225740), (490, 158018), (686, 112870), (980, 79009), (1372, 56435), (1715, 45148), (3430, 22574), (6860, 11287)]