1988289720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{49757}}^1$

素因数の和:49814

約数の個数: 128

約数和(自身を含む): 6806894400

約数和(自身を除く): 4818604680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 90, 108, 111, 120, 135, 148, 180, 185, 216, 222, 270, 296, 333, 360, 370, 444, 540, 555, 666, 740, 888, 999, 1080, 1110, 1332, 1480, 1665, 1998, 2220, 2664, 3330, 3996, 4440, 4995, 6660, 7992, 9990, 13320, 19980, 39960, 49757, 99514, 149271, 199028, 248785, 298542, 398056, 447813, 497570, 597084, 746355, 895626, 995140, 1194168, 1343439, 1492710, 1791252, 1841009, 1990280, 2239065, 2686878, 2985420, 3582504, 3682018, 4478130, 5373756, 5523027, 5970840, 6717195, 7364036, 8956260, 9205045, 10747512, 11046054, 13434390, 14728072, 16569081, 17912520, 18410090, 22092108, 26868780, 27615135, 33138162, 36820180, 44184216, 49707243, 53737560, 55230270, 66276324, 73640360, 82845405, 99414486, 110460540, 132552648, 165690810, 198828972, 220921080, 248536215, 331381620, 397657944, 497072430, 662763240, 994144860, 1988289720]

約数ペア:

[(1, 1988289720), (2, 994144860), (3, 662763240), (4, 497072430), (5, 397657944), (6, 331381620), (8, 248536215), (9, 220921080), (10, 198828972), (12, 165690810), (15, 132552648), (18, 110460540), (20, 99414486), (24, 82845405), (27, 73640360), (30, 66276324), (36, 55230270), (37, 53737560), (40, 49707243), (45, 44184216), (54, 36820180), (60, 33138162), (72, 27615135), (74, 26868780), (90, 22092108), (108, 18410090), (111, 17912520), (120, 16569081), (135, 14728072), (148, 13434390), (180, 11046054), (185, 10747512), (216, 9205045), (222, 8956260), (270, 7364036), (296, 6717195), (333, 5970840), (360, 5523027), (370, 5373756), (444, 4478130), (540, 3682018), (555, 3582504), (666, 2985420), (740, 2686878), (888, 2239065), (999, 1990280), (1080, 1841009), (1110, 1791252), (1332, 1492710), (1480, 1343439), (1665, 1194168), (1998, 995140), (2220, 895626), (2664, 746355), (3330, 597084), (3996, 497570), (4440, 447813), (4995, 398056), (6660, 298542), (7992, 248785), (9990, 199028), (13320, 149271), (19980, 99514), (39960, 49757)]