20624340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31249}}^1$

素因数の和:31272

約数の個数: 48

約数和(自身を含む): 63000000

約数和(自身を除く): 42375660

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31249, 62498, 93747, 124996, 156245, 187494, 312490, 343739, 374988, 468735, 624980, 687478, 937470, 1031217, 1374956, 1718695, 1874940, 2062434, 3437390, 4124868, 5156085, 6874780, 10312170, 20624340]

約数ペア:

[(1, 20624340), (2, 10312170), (3, 6874780), (4, 5156085), (5, 4124868), (6, 3437390), (10, 2062434), (11, 1874940), (12, 1718695), (15, 1374956), (20, 1031217), (22, 937470), (30, 687478), (33, 624980), (44, 468735), (55, 374988), (60, 343739), (66, 312490), (110, 187494), (132, 156245), (165, 124996), (220, 93747), (330, 62498), (660, 31249)]