1989289320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{5261}}^1$

素因数の和:5435

約数の個数: 128

約数和(自身を含む): 6273987840

約数和(自身を除く): 4284698520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 137, 138, 184, 230, 274, 276, 345, 411, 460, 548, 552, 685, 690, 822, 920, 1096, 1370, 1380, 1644, 2055, 2740, 2760, 3151, 3288, 4110, 5261, 5480, 6302, 8220, 9453, 10522, 12604, 15755, 15783, 16440, 18906, 21044, 25208, 26305, 31510, 31566, 37812, 42088, 47265, 52610, 63020, 63132, 75624, 78915, 94530, 105220, 121003, 126040, 126264, 157830, 189060, 210440, 242006, 315660, 363009, 378120, 484012, 605015, 631320, 720757, 726018, 968024, 1210030, 1441514, 1452036, 1815045, 2162271, 2420060, 2883028, 2904072, 3603785, 3630090, 4324542, 4840120, 5766056, 7207570, 7260180, 8649084, 10811355, 14415140, 14520360, 16577411, 17298168, 21622710, 28830280, 33154822, 43245420, 49732233, 66309644, 82887055, 86490840, 99464466, 132619288, 165774110, 198928932, 248661165, 331548220, 397857864, 497322330, 663096440, 994644660, 1989289320]

約数ペア:

[(1, 1989289320), (2, 994644660), (3, 663096440), (4, 497322330), (5, 397857864), (6, 331548220), (8, 248661165), (10, 198928932), (12, 165774110), (15, 132619288), (20, 99464466), (23, 86490840), (24, 82887055), (30, 66309644), (40, 49732233), (46, 43245420), (60, 33154822), (69, 28830280), (92, 21622710), (115, 17298168), (120, 16577411), (137, 14520360), (138, 14415140), (184, 10811355), (230, 8649084), (274, 7260180), (276, 7207570), (345, 5766056), (411, 4840120), (460, 4324542), (548, 3630090), (552, 3603785), (685, 2904072), (690, 2883028), (822, 2420060), (920, 2162271), (1096, 1815045), (1370, 1452036), (1380, 1441514), (1644, 1210030), (2055, 968024), (2740, 726018), (2760, 720757), (3151, 631320), (3288, 605015), (4110, 484012), (5261, 378120), (5480, 363009), (6302, 315660), (8220, 242006), (9453, 210440), (10522, 189060), (12604, 157830), (15755, 126264), (15783, 126040), (16440, 121003), (18906, 105220), (21044, 94530), (25208, 78915), (26305, 75624), (31510, 63132), (31566, 63020), (37812, 52610), (42088, 47265)]