20483540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 54964224

約数和(自身を除く): 34480684

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 47, 55, 70, 77, 94, 110, 140, 154, 188, 220, 235, 283, 308, 329, 385, 470, 517, 566, 658, 770, 940, 1034, 1132, 1316, 1415, 1540, 1645, 1981, 2068, 2585, 2830, 3113, 3290, 3619, 3962, 5170, 5660, 6226, 6580, 7238, 7924, 9905, 10340, 12452, 13301, 14476, 15565, 18095, 19810, 21791, 26602, 31130, 36190, 39620, 43582, 53204, 62260, 66505, 72380, 87164, 93107, 108955, 133010, 146311, 186214, 217910, 266020, 292622, 372428, 435820, 465535, 585244, 731555, 931070, 1024177, 1463110, 1862140, 2048354, 2926220, 4096708, 5120885, 10241770, 20483540]

約数ペア:

[(1, 20483540), (2, 10241770), (4, 5120885), (5, 4096708), (7, 2926220), (10, 2048354), (11, 1862140), (14, 1463110), (20, 1024177), (22, 931070), (28, 731555), (35, 585244), (44, 465535), (47, 435820), (55, 372428), (70, 292622), (77, 266020), (94, 217910), (110, 186214), (140, 146311), (154, 133010), (188, 108955), (220, 93107), (235, 87164), (283, 72380), (308, 66505), (329, 62260), (385, 53204), (470, 43582), (517, 39620), (566, 36190), (658, 31130), (770, 26602), (940, 21791), (1034, 19810), (1132, 18095), (1316, 15565), (1415, 14476), (1540, 13301), (1645, 12452), (1981, 10340), (2068, 9905), (2585, 7924), (2830, 7238), (3113, 6580), (3290, 6226), (3619, 5660), (3962, 5170)]