70560980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{809}}^1$

素因数の和:921

約数の個数: 72

約数和(自身を含む): 174522600

約数和(自身を除く): 103961620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 809, 890, 980, 1246, 1618, 1780, 2492, 3115, 3236, 4045, 4361, 5663, 6230, 8090, 8722, 11326, 12460, 16180, 17444, 21805, 22652, 28315, 39641, 43610, 56630, 72001, 79282, 87220, 113260, 144002, 158564, 198205, 288004, 360005, 396410, 504007, 720010, 792820, 1008014, 1440020, 2016028, 2520035, 3528049, 5040070, 7056098, 10080140, 14112196, 17640245, 35280490, 70560980]

約数ペア:

[(1, 70560980), (2, 35280490), (4, 17640245), (5, 14112196), (7, 10080140), (10, 7056098), (14, 5040070), (20, 3528049), (28, 2520035), (35, 2016028), (49, 1440020), (70, 1008014), (89, 792820), (98, 720010), (140, 504007), (178, 396410), (196, 360005), (245, 288004), (356, 198205), (445, 158564), (490, 144002), (623, 113260), (809, 87220), (890, 79282), (980, 72001), (1246, 56630), (1618, 43610), (1780, 39641), (2492, 28315), (3115, 22652), (3236, 21805), (4045, 17444), (4361, 16180), (5663, 12460), (6230, 11326), (8090, 8722)]