1820808720

素因数分解:

$2^4\times 3^8\times 5^1\times {\mathrm{3469}}^1$

素因数の和:3506

約数の個数: 180

約数和(自身を含む): 6351578220

約数和(自身を除く): 4530769500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 729, 810, 972, 1080, 1215, 1296, 1458, 1620, 1944, 2160, 2187, 2430, 2916, 3240, 3469, 3645, 3888, 4374, 4860, 5832, 6480, 6561, 6938, 7290, 8748, 9720, 10407, 10935, 11664, 13122, 13876, 14580, 17345, 17496, 19440, 20814, 21870, 26244, 27752, 29160, 31221, 32805, 34690, 34992, 41628, 43740, 52035, 52488, 55504, 58320, 62442, 65610, 69380, 83256, 87480, 93663, 104070, 104976, 124884, 131220, 138760, 156105, 166512, 174960, 187326, 208140, 249768, 262440, 277520, 280989, 312210, 374652, 416280, 468315, 499536, 524880, 561978, 624420, 749304, 832560, 842967, 936630, 1123956, 1248840, 1404945, 1498608, 1685934, 1873260, 2247912, 2497680, 2528901, 2809890, 3371868, 3746520, 4214835, 4495824, 5057802, 5619780, 6743736, 7493040, 7586703, 8429670, 10115604, 11239560, 12644505, 13487472, 15173406, 16859340, 20231208, 22479120, 22760109, 25289010, 30346812, 33718680, 37933515, 40462416, 45520218, 50578020, 60693624, 67437360, 75867030, 91040436, 101156040, 113800545, 121387248, 151734060, 182080872, 202312080, 227601090, 303468120, 364161744, 455202180, 606936240, 910404360, 1820808720]

約数ペア:

[(1, 1820808720), (2, 910404360), (3, 606936240), (4, 455202180), (5, 364161744), (6, 303468120), (8, 227601090), (9, 202312080), (10, 182080872), (12, 151734060), (15, 121387248), (16, 113800545), (18, 101156040), (20, 91040436), (24, 75867030), (27, 67437360), (30, 60693624), (36, 50578020), (40, 45520218), (45, 40462416), (48, 37933515), (54, 33718680), (60, 30346812), (72, 25289010), (80, 22760109), (81, 22479120), (90, 20231208), (108, 16859340), (120, 15173406), (135, 13487472), (144, 12644505), (162, 11239560), (180, 10115604), (216, 8429670), (240, 7586703), (243, 7493040), (270, 6743736), (324, 5619780), (360, 5057802), (405, 4495824), (432, 4214835), (486, 3746520), (540, 3371868), (648, 2809890), (720, 2528901), (729, 2497680), (810, 2247912), (972, 1873260), (1080, 1685934), (1215, 1498608), (1296, 1404945), (1458, 1248840), (1620, 1123956), (1944, 936630), (2160, 842967), (2187, 832560), (2430, 749304), (2916, 624420), (3240, 561978), (3469, 524880), (3645, 499536), (3888, 468315), (4374, 416280), (4860, 374652), (5832, 312210), (6480, 280989), (6561, 277520), (6938, 262440), (7290, 249768), (8748, 208140), (9720, 187326), (10407, 174960), (10935, 166512), (11664, 156105), (13122, 138760), (13876, 131220), (14580, 124884), (17345, 104976), (17496, 104070), (19440, 93663), (20814, 87480), (21870, 83256), (26244, 69380), (27752, 65610), (29160, 62442), (31221, 58320), (32805, 55504), (34690, 52488), (34992, 52035), (41628, 43740)]