20500920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:226

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 54978120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 31, 33, 36, 40, 44, 45, 55, 60, 62, 66, 72, 88, 90, 93, 99, 110, 120, 124, 132, 155, 165, 167, 180, 186, 198, 220, 248, 264, 279, 310, 330, 334, 341, 360, 372, 396, 440, 465, 495, 501, 558, 620, 660, 668, 682, 744, 792, 835, 930, 990, 1002, 1023, 1116, 1240, 1320, 1336, 1364, 1395, 1503, 1670, 1705, 1837, 1860, 1980, 2004, 2046, 2232, 2505, 2728, 2790, 3006, 3069, 3340, 3410, 3674, 3720, 3960, 4008, 4092, 5010, 5115, 5177, 5511, 5580, 6012, 6138, 6680, 6820, 7348, 7515, 8184, 9185, 10020, 10230, 10354, 11022, 11160, 12024, 12276, 13640, 14696, 15030, 15345, 15531, 16533, 18370, 20040, 20460, 20708, 22044, 24552, 25885, 27555, 30060, 30690, 31062, 33066, 36740, 40920, 41416, 44088, 46593, 51770, 55110, 56947, 60120, 61380, 62124, 66132, 73480, 77655, 82665, 93186, 103540, 110220, 113894, 122760, 124248, 132264, 155310, 165330, 170841, 186372, 207080, 220440, 227788, 232965, 284735, 310620, 330660, 341682, 372744, 455576, 465930, 512523, 569470, 621240, 661320, 683364, 854205, 931860, 1025046, 1138940, 1366728, 1708410, 1863720, 2050092, 2277880, 2562615, 3416820, 4100184, 5125230, 6833640, 10250460, 20500920]

約数ペア:

[(1, 20500920), (2, 10250460), (3, 6833640), (4, 5125230), (5, 4100184), (6, 3416820), (8, 2562615), (9, 2277880), (10, 2050092), (11, 1863720), (12, 1708410), (15, 1366728), (18, 1138940), (20, 1025046), (22, 931860), (24, 854205), (30, 683364), (31, 661320), (33, 621240), (36, 569470), (40, 512523), (44, 465930), (45, 455576), (55, 372744), (60, 341682), (62, 330660), (66, 310620), (72, 284735), (88, 232965), (90, 227788), (93, 220440), (99, 207080), (110, 186372), (120, 170841), (124, 165330), (132, 155310), (155, 132264), (165, 124248), (167, 122760), (180, 113894), (186, 110220), (198, 103540), (220, 93186), (248, 82665), (264, 77655), (279, 73480), (310, 66132), (330, 62124), (334, 61380), (341, 60120), (360, 56947), (372, 55110), (396, 51770), (440, 46593), (465, 44088), (495, 41416), (501, 40920), (558, 36740), (620, 33066), (660, 31062), (668, 30690), (682, 30060), (744, 27555), (792, 25885), (835, 24552), (930, 22044), (990, 20708), (1002, 20460), (1023, 20040), (1116, 18370), (1240, 16533), (1320, 15531), (1336, 15345), (1364, 15030), (1395, 14696), (1503, 13640), (1670, 12276), (1705, 12024), (1837, 11160), (1860, 11022), (1980, 10354), (2004, 10230), (2046, 10020), (2232, 9185), (2505, 8184), (2728, 7515), (2790, 7348), (3006, 6820), (3069, 6680), (3340, 6138), (3410, 6012), (3674, 5580), (3720, 5511), (3960, 5177), (4008, 5115), (4092, 5010)]