20880360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1871}}^1$

素因数の和:1919

約数の個数: 96

約数和(自身を含む): 70087680

約数和(自身を除く): 49207320

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, 1871, 2232, 2790, 3720, 3742, 5580, 5613, 7484, 9355, 11160, 11226, 14968, 16839, 18710, 22452, 28065, 33678, 37420, 44904, 56130, 58001, 67356, 74840, 84195, 112260, 116002, 134712, 168390, 174003, 224520, 232004, 290005, 336780, 348006, 464008, 522009, 580010, 673560, 696012, 870015, 1044018, 1160020, 1392024, 1740030, 2088036, 2320040, 2610045, 3480060, 4176072, 5220090, 6960120, 10440180, 20880360]

約数ペア:

[(1, 20880360), (2, 10440180), (3, 6960120), (4, 5220090), (5, 4176072), (6, 3480060), (8, 2610045), (9, 2320040), (10, 2088036), (12, 1740030), (15, 1392024), (18, 1160020), (20, 1044018), (24, 870015), (30, 696012), (31, 673560), (36, 580010), (40, 522009), (45, 464008), (60, 348006), (62, 336780), (72, 290005), (90, 232004), (93, 224520), (120, 174003), (124, 168390), (155, 134712), (180, 116002), (186, 112260), (248, 84195), (279, 74840), (310, 67356), (360, 58001), (372, 56130), (465, 44904), (558, 37420), (620, 33678), (744, 28065), (930, 22452), (1116, 18710), (1240, 16839), (1395, 14968), (1860, 11226), (1871, 11160), (2232, 9355), (2790, 7484), (3720, 5613), (3742, 5580)]