20625660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{947}}^1$

素因数の和:984

約数の個数: 108

約数和(自身を含む): 68841864

約数和(自身を除く): 48216204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 947, 990, 1089, 1210, 1452, 1815, 1894, 1980, 2178, 2420, 2841, 3630, 3788, 4356, 4735, 5445, 5682, 7260, 8523, 9470, 10417, 10890, 11364, 14205, 17046, 18940, 20834, 21780, 28410, 31251, 34092, 41668, 42615, 52085, 56820, 62502, 85230, 93753, 104170, 114587, 125004, 156255, 170460, 187506, 208340, 229174, 312510, 343761, 375012, 458348, 468765, 572935, 625020, 687522, 937530, 1031283, 1145870, 1375044, 1718805, 1875060, 2062566, 2291740, 3437610, 4125132, 5156415, 6875220, 10312830, 20625660]

約数ペア:

[(1, 20625660), (2, 10312830), (3, 6875220), (4, 5156415), (5, 4125132), (6, 3437610), (9, 2291740), (10, 2062566), (11, 1875060), (12, 1718805), (15, 1375044), (18, 1145870), (20, 1031283), (22, 937530), (30, 687522), (33, 625020), (36, 572935), (44, 468765), (45, 458348), (55, 375012), (60, 343761), (66, 312510), (90, 229174), (99, 208340), (110, 187506), (121, 170460), (132, 156255), (165, 125004), (180, 114587), (198, 104170), (220, 93753), (242, 85230), (330, 62502), (363, 56820), (396, 52085), (484, 42615), (495, 41668), (605, 34092), (660, 31251), (726, 28410), (947, 21780), (990, 20834), (1089, 18940), (1210, 17046), (1452, 14205), (1815, 11364), (1894, 10890), (1980, 10417), (2178, 9470), (2420, 8523), (2841, 7260), (3630, 5682), (3788, 5445), (4356, 4735)]