20902680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1873}}^1$

素因数の和:1921

約数の個数: 96

約数和(自身を含む): 70162560

約数和(自身を除く): 49259880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 1873, 2232, 2790, 3720, 3746, 5580, 5619, 7492, 9365, 11160, 11238, 14984, 16857, 18730, 22476, 28095, 33714, 37460, 44952, 56190, 58063, 67428, 74920, 84285, 112380, 116126, 134856, 168570, 174189, 224760, 232252, 290315, 337140, 348378, 464504, 522567, 580630, 674280, 696756, 870945, 1045134, 1161260, 1393512, 1741890, 2090268, 2322520, 2612835, 3483780, 4180536, 5225670, 6967560, 10451340, 20902680]

約数ペア:

[(1, 20902680), (2, 10451340), (3, 6967560), (4, 5225670), (5, 4180536), (6, 3483780), (8, 2612835), (9, 2322520), (10, 2090268), (12, 1741890), (15, 1393512), (18, 1161260), (20, 1045134), (24, 870945), (30, 696756), (31, 674280), (36, 580630), (40, 522567), (45, 464504), (60, 348378), (62, 337140), (72, 290315), (90, 232252), (93, 224760), (120, 174189), (124, 168570), (155, 134856), (180, 116126), (186, 112380), (248, 84285), (279, 74920), (310, 67428), (360, 58063), (372, 56190), (465, 44952), (558, 37460), (620, 33714), (744, 28095), (930, 22476), (1116, 18730), (1240, 16857), (1395, 14984), (1860, 11238), (1873, 11160), (2232, 9365), (2790, 7492), (3720, 5619), (3746, 5580)]