178399980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8191}}^1$

素因数の和:8228

約数の個数: 108

約数和(自身を含む): 594886656

約数和(自身を除く): 416486676

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, 990, 1089, 1210, 1452, 1815, 1980, 2178, 2420, 3630, 4356, 5445, 7260, 8191, 10890, 16382, 21780, 24573, 32764, 40955, 49146, 73719, 81910, 90101, 98292, 122865, 147438, 163820, 180202, 245730, 270303, 294876, 360404, 368595, 450505, 491460, 540606, 737190, 810909, 901010, 991111, 1081212, 1351515, 1474380, 1621818, 1802020, 1982222, 2703030, 2973333, 3243636, 3964444, 4054545, 4955555, 5406060, 5946666, 8109090, 8919999, 9911110, 11893332, 14866665, 16218180, 17839998, 19822220, 29733330, 35679996, 44599995, 59466660, 89199990, 178399980]

約数ペア:

[(1, 178399980), (2, 89199990), (3, 59466660), (4, 44599995), (5, 35679996), (6, 29733330), (9, 19822220), (10, 17839998), (11, 16218180), (12, 14866665), (15, 11893332), (18, 9911110), (20, 8919999), (22, 8109090), (30, 5946666), (33, 5406060), (36, 4955555), (44, 4054545), (45, 3964444), (55, 3243636), (60, 2973333), (66, 2703030), (90, 1982222), (99, 1802020), (110, 1621818), (121, 1474380), (132, 1351515), (165, 1081212), (180, 991111), (198, 901010), (220, 810909), (242, 737190), (330, 540606), (363, 491460), (396, 450505), (484, 368595), (495, 360404), (605, 294876), (660, 270303), (726, 245730), (990, 180202), (1089, 163820), (1210, 147438), (1452, 122865), (1815, 98292), (1980, 90101), (2178, 81910), (2420, 73719), (3630, 49146), (4356, 40955), (5445, 32764), (7260, 24573), (8191, 21780), (10890, 16382)]