81807660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:628

約数の個数: 144

約数和(自身を含む): 274659840

約数和(自身を除く): 192852180

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, 79, 90, 99, 110, 132, 158, 165, 180, 198, 220, 237, 316, 330, 395, 396, 474, 495, 523, 660, 711, 790, 869, 948, 990, 1046, 1185, 1422, 1569, 1580, 1738, 1980, 2092, 2370, 2607, 2615, 2844, 3138, 3476, 3555, 4345, 4707, 4740, 5214, 5230, 5753, 6276, 7110, 7821, 7845, 8690, 9414, 10428, 10460, 11506, 13035, 14220, 15642, 15690, 17259, 17380, 18828, 23012, 23535, 26070, 28765, 31284, 31380, 34518, 39105, 41317, 47070, 51777, 52140, 57530, 69036, 78210, 82634, 86295, 94140, 103554, 115060, 123951, 156420, 165268, 172590, 206585, 207108, 247902, 258885, 345180, 371853, 413170, 454487, 495804, 517770, 619755, 743706, 826340, 908974, 1035540, 1239510, 1363461, 1487412, 1817948, 1859265, 2272435, 2479020, 2726922, 3718530, 4090383, 4544870, 5453844, 6817305, 7437060, 8180766, 9089740, 13634610, 16361532, 20451915, 27269220, 40903830, 81807660]

約数ペア:

[(1, 81807660), (2, 40903830), (3, 27269220), (4, 20451915), (5, 16361532), (6, 13634610), (9, 9089740), (10, 8180766), (11, 7437060), (12, 6817305), (15, 5453844), (18, 4544870), (20, 4090383), (22, 3718530), (30, 2726922), (33, 2479020), (36, 2272435), (44, 1859265), (45, 1817948), (55, 1487412), (60, 1363461), (66, 1239510), (79, 1035540), (90, 908974), (99, 826340), (110, 743706), (132, 619755), (158, 517770), (165, 495804), (180, 454487), (198, 413170), (220, 371853), (237, 345180), (316, 258885), (330, 247902), (395, 207108), (396, 206585), (474, 172590), (495, 165268), (523, 156420), (660, 123951), (711, 115060), (790, 103554), (869, 94140), (948, 86295), (990, 82634), (1046, 78210), (1185, 69036), (1422, 57530), (1569, 52140), (1580, 51777), (1738, 47070), (1980, 41317), (2092, 39105), (2370, 34518), (2607, 31380), (2615, 31284), (2844, 28765), (3138, 26070), (3476, 23535), (3555, 23012), (4345, 18828), (4707, 17380), (4740, 17259), (5214, 15690), (5230, 15642), (5753, 14220), (6276, 13035), (7110, 11506), (7821, 10460), (7845, 10428), (8690, 9414)]