19702980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:167

約数の個数: 192

約数和(自身を含む): 69672960

約数和(自身を除く): 49969980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 31, 33, 36, 44, 45, 54, 55, 60, 62, 66, 90, 93, 99, 107, 108, 110, 124, 132, 135, 155, 165, 180, 186, 198, 214, 220, 270, 279, 297, 310, 321, 330, 341, 372, 396, 428, 465, 495, 535, 540, 558, 594, 620, 642, 660, 682, 837, 930, 963, 990, 1023, 1070, 1116, 1177, 1188, 1284, 1364, 1395, 1485, 1605, 1674, 1705, 1860, 1926, 1980, 2046, 2140, 2354, 2790, 2889, 2970, 3069, 3210, 3317, 3348, 3410, 3531, 3852, 4092, 4185, 4708, 4815, 5115, 5580, 5778, 5885, 5940, 6138, 6420, 6634, 6820, 7062, 8370, 9207, 9630, 9951, 10230, 10593, 11556, 11770, 12276, 13268, 14124, 14445, 15345, 16585, 16740, 17655, 18414, 19260, 19902, 20460, 21186, 23540, 28890, 29853, 30690, 31779, 33170, 35310, 36487, 36828, 39804, 42372, 46035, 49755, 52965, 57780, 59706, 61380, 63558, 66340, 70620, 72974, 89559, 92070, 99510, 105930, 109461, 119412, 127116, 145948, 149265, 158895, 179118, 182435, 184140, 199020, 211860, 218922, 298530, 317790, 328383, 358236, 364870, 437844, 447795, 547305, 597060, 635580, 656766, 729740, 895590, 985149, 1094610, 1313532, 1641915, 1791180, 1970298, 2189220, 3283830, 3940596, 4925745, 6567660, 9851490, 19702980]

約数ペア:

[(1, 19702980), (2, 9851490), (3, 6567660), (4, 4925745), (5, 3940596), (6, 3283830), (9, 2189220), (10, 1970298), (11, 1791180), (12, 1641915), (15, 1313532), (18, 1094610), (20, 985149), (22, 895590), (27, 729740), (30, 656766), (31, 635580), (33, 597060), (36, 547305), (44, 447795), (45, 437844), (54, 364870), (55, 358236), (60, 328383), (62, 317790), (66, 298530), (90, 218922), (93, 211860), (99, 199020), (107, 184140), (108, 182435), (110, 179118), (124, 158895), (132, 149265), (135, 145948), (155, 127116), (165, 119412), (180, 109461), (186, 105930), (198, 99510), (214, 92070), (220, 89559), (270, 72974), (279, 70620), (297, 66340), (310, 63558), (321, 61380), (330, 59706), (341, 57780), (372, 52965), (396, 49755), (428, 46035), (465, 42372), (495, 39804), (535, 36828), (540, 36487), (558, 35310), (594, 33170), (620, 31779), (642, 30690), (660, 29853), (682, 28890), (837, 23540), (930, 21186), (963, 20460), (990, 19902), (1023, 19260), (1070, 18414), (1116, 17655), (1177, 16740), (1188, 16585), (1284, 15345), (1364, 14445), (1395, 14124), (1485, 13268), (1605, 12276), (1674, 11770), (1705, 11556), (1860, 10593), (1926, 10230), (1980, 9951), (2046, 9630), (2140, 9207), (2354, 8370), (2790, 7062), (2889, 6820), (2970, 6634), (3069, 6420), (3210, 6138), (3317, 5940), (3348, 5885), (3410, 5778), (3531, 5580), (3852, 5115), (4092, 4815), (4185, 4708)]