20123488080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{288137}}^1$

素因数の和:288253

約数の個数: 120

約数和(自身を含む): 68278333032

約数和(自身を除く): 48154844952

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 97, 120, 144, 180, 194, 240, 291, 360, 388, 485, 582, 720, 776, 873, 970, 1164, 1455, 1552, 1746, 1940, 2328, 2910, 3492, 3880, 4365, 4656, 5820, 6984, 7760, 8730, 11640, 13968, 17460, 23280, 34920, 69840, 288137, 576274, 864411, 1152548, 1440685, 1728822, 2305096, 2593233, 2881370, 3457644, 4322055, 4610192, 5186466, 5762740, 6915288, 8644110, 10372932, 11525480, 12966165, 13830576, 17288220, 20745864, 23050960, 25932330, 27949289, 34576440, 41491728, 51864660, 55898578, 69152880, 83847867, 103729320, 111797156, 139746445, 167695734, 207458640, 223594312, 251543601, 279492890, 335391468, 419239335, 447188624, 503087202, 558985780, 670782936, 838478670, 1006174404, 1117971560, 1257718005, 1341565872, 1676957340, 2012348808, 2235943120, 2515436010, 3353914680, 4024697616, 5030872020, 6707829360, 10061744040, 20123488080]

約数ペア:

[(1, 20123488080), (2, 10061744040), (3, 6707829360), (4, 5030872020), (5, 4024697616), (6, 3353914680), (8, 2515436010), (9, 2235943120), (10, 2012348808), (12, 1676957340), (15, 1341565872), (16, 1257718005), (18, 1117971560), (20, 1006174404), (24, 838478670), (30, 670782936), (36, 558985780), (40, 503087202), (45, 447188624), (48, 419239335), (60, 335391468), (72, 279492890), (80, 251543601), (90, 223594312), (97, 207458640), (120, 167695734), (144, 139746445), (180, 111797156), (194, 103729320), (240, 83847867), (291, 69152880), (360, 55898578), (388, 51864660), (485, 41491728), (582, 34576440), (720, 27949289), (776, 25932330), (873, 23050960), (970, 20745864), (1164, 17288220), (1455, 13830576), (1552, 12966165), (1746, 11525480), (1940, 10372932), (2328, 8644110), (2910, 6915288), (3492, 5762740), (3880, 5186466), (4365, 4610192), (4656, 4322055), (5820, 3457644), (6984, 2881370), (7760, 2593233), (8730, 2305096), (11640, 1728822), (13968, 1440685), (17460, 1152548), (23280, 864411), (34920, 576274), (69840, 288137)]