20089440

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{1993}}^1$

素因数の和:2021

約数の個数: 144

約数和(自身を含む): 78388128

約数和(自身を除く): 58298688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 1993, 2016, 2520, 3360, 3986, 5040, 5979, 7972, 9965, 10080, 11958, 13951, 15944, 17937, 19930, 23916, 27902, 29895, 31888, 35874, 39860, 41853, 47832, 55804, 59790, 63776, 69755, 71748, 79720, 83706, 89685, 95664, 111608, 119580, 125559, 139510, 143496, 159440, 167412, 179370, 191328, 209265, 223216, 239160, 251118, 279020, 286992, 318880, 334824, 358740, 418530, 446432, 478320, 502236, 558040, 573984, 627795, 669648, 717480, 837060, 956640, 1004472, 1116080, 1255590, 1339296, 1434960, 1674120, 2008944, 2232160, 2511180, 2869920, 3348240, 4017888, 5022360, 6696480, 10044720, 20089440]

約数ペア:

[(1, 20089440), (2, 10044720), (3, 6696480), (4, 5022360), (5, 4017888), (6, 3348240), (7, 2869920), (8, 2511180), (9, 2232160), (10, 2008944), (12, 1674120), (14, 1434960), (15, 1339296), (16, 1255590), (18, 1116080), (20, 1004472), (21, 956640), (24, 837060), (28, 717480), (30, 669648), (32, 627795), (35, 573984), (36, 558040), (40, 502236), (42, 478320), (45, 446432), (48, 418530), (56, 358740), (60, 334824), (63, 318880), (70, 286992), (72, 279020), (80, 251118), (84, 239160), (90, 223216), (96, 209265), (105, 191328), (112, 179370), (120, 167412), (126, 159440), (140, 143496), (144, 139510), (160, 125559), (168, 119580), (180, 111608), (210, 95664), (224, 89685), (240, 83706), (252, 79720), (280, 71748), (288, 69755), (315, 63776), (336, 59790), (360, 55804), (420, 47832), (480, 41853), (504, 39860), (560, 35874), (630, 31888), (672, 29895), (720, 27902), (840, 23916), (1008, 19930), (1120, 17937), (1260, 15944), (1440, 13951), (1680, 11958), (1993, 10080), (2016, 9965), (2520, 7972), (3360, 5979), (3986, 5040)]