61162780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 150822000

約数和(自身を除く): 89659220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 139, 140, 196, 245, 278, 449, 490, 556, 695, 898, 973, 980, 1390, 1796, 1946, 2245, 2780, 3143, 3892, 4490, 4865, 6286, 6811, 8980, 9730, 12572, 13622, 15715, 19460, 22001, 27244, 31430, 34055, 44002, 62411, 62860, 68110, 88004, 110005, 124822, 136220, 220010, 249644, 312055, 436877, 440020, 624110, 873754, 1248220, 1747508, 2184385, 3058139, 4368770, 6116278, 8737540, 12232556, 15290695, 30581390, 61162780]

約数ペア:

[(1, 61162780), (2, 30581390), (4, 15290695), (5, 12232556), (7, 8737540), (10, 6116278), (14, 4368770), (20, 3058139), (28, 2184385), (35, 1747508), (49, 1248220), (70, 873754), (98, 624110), (139, 440020), (140, 436877), (196, 312055), (245, 249644), (278, 220010), (449, 136220), (490, 124822), (556, 110005), (695, 88004), (898, 68110), (973, 62860), (980, 62411), (1390, 44002), (1796, 34055), (1946, 31430), (2245, 27244), (2780, 22001), (3143, 19460), (3892, 15715), (4490, 13622), (4865, 12572), (6286, 9730), (6811, 8980)]