20503260

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{883}}^1$

素因数の和:944

約数の個数: 96

約数和(自身を含む): 65345280

約数和(自身を除く): 44842020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 86, 90, 108, 129, 135, 172, 180, 215, 258, 270, 387, 430, 516, 540, 645, 774, 860, 883, 1161, 1290, 1548, 1766, 1935, 2322, 2580, 2649, 3532, 3870, 4415, 4644, 5298, 5805, 7740, 7947, 8830, 10596, 11610, 13245, 15894, 17660, 23220, 23841, 26490, 31788, 37969, 39735, 47682, 52980, 75938, 79470, 95364, 113907, 119205, 151876, 158940, 189845, 227814, 238410, 341721, 379690, 455628, 476820, 569535, 683442, 759380, 1025163, 1139070, 1366884, 1708605, 2050326, 2278140, 3417210, 4100652, 5125815, 6834420, 10251630, 20503260]

約数ペア:

[(1, 20503260), (2, 10251630), (3, 6834420), (4, 5125815), (5, 4100652), (6, 3417210), (9, 2278140), (10, 2050326), (12, 1708605), (15, 1366884), (18, 1139070), (20, 1025163), (27, 759380), (30, 683442), (36, 569535), (43, 476820), (45, 455628), (54, 379690), (60, 341721), (86, 238410), (90, 227814), (108, 189845), (129, 158940), (135, 151876), (172, 119205), (180, 113907), (215, 95364), (258, 79470), (270, 75938), (387, 52980), (430, 47682), (516, 39735), (540, 37969), (645, 31788), (774, 26490), (860, 23841), (883, 23220), (1161, 17660), (1290, 15894), (1548, 13245), (1766, 11610), (1935, 10596), (2322, 8830), (2580, 7947), (2649, 7740), (3532, 5805), (3870, 5298), (4415, 4644)]