8212820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5333}}^1$

素因数の和:5360

約数の個数: 48

約数和(自身を含む): 21506688

約数和(自身を除く): 13293868

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 5333, 10666, 21332, 26665, 37331, 53330, 58663, 74662, 106660, 117326, 149324, 186655, 234652, 293315, 373310, 410641, 586630, 746620, 821282, 1173260, 1642564, 2053205, 4106410, 8212820]

約数ペア:

[(1, 8212820), (2, 4106410), (4, 2053205), (5, 1642564), (7, 1173260), (10, 821282), (11, 746620), (14, 586630), (20, 410641), (22, 373310), (28, 293315), (35, 234652), (44, 186655), (55, 149324), (70, 117326), (77, 106660), (110, 74662), (140, 58663), (154, 53330), (220, 37331), (308, 26665), (385, 21332), (770, 10666), (1540, 5333)]