20150680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1117}}^1$

素因数の和:1180

約数の個数: 64

約数和(自身を含む): 50712480

約数和(自身を除く): 30561800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1117, 1640, 1804, 2234, 2255, 3608, 4468, 4510, 5585, 8936, 9020, 11170, 12287, 18040, 22340, 24574, 44680, 45797, 49148, 61435, 91594, 98296, 122870, 183188, 228985, 245740, 366376, 457970, 491480, 503767, 915940, 1007534, 1831880, 2015068, 2518835, 4030136, 5037670, 10075340, 20150680]

約数ペア:

[(1, 20150680), (2, 10075340), (4, 5037670), (5, 4030136), (8, 2518835), (10, 2015068), (11, 1831880), (20, 1007534), (22, 915940), (40, 503767), (41, 491480), (44, 457970), (55, 366376), (82, 245740), (88, 228985), (110, 183188), (164, 122870), (205, 98296), (220, 91594), (328, 61435), (410, 49148), (440, 45797), (451, 44680), (820, 24574), (902, 22340), (1117, 18040), (1640, 12287), (1804, 11170), (2234, 9020), (2255, 8936), (3608, 5585), (4468, 4510)]