21254860480

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1\times {\mathrm{331}}^1$

素因数の和:727

約数の個数: 224

約数和(自身を含む): 58773242880

約数和(自身を除く): 37518382400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 109, 112, 140, 160, 218, 224, 263, 280, 320, 331, 436, 448, 526, 545, 560, 662, 763, 872, 1052, 1090, 1120, 1315, 1324, 1526, 1655, 1744, 1841, 2104, 2180, 2240, 2317, 2630, 2648, 3052, 3310, 3488, 3682, 3815, 4208, 4360, 4634, 5260, 5296, 6104, 6620, 6976, 7364, 7630, 8416, 8720, 9205, 9268, 10520, 10592, 11585, 12208, 13240, 14728, 15260, 16832, 17440, 18410, 18536, 21040, 21184, 23170, 24416, 26480, 28667, 29456, 30520, 34880, 36079, 36820, 37072, 42080, 46340, 48832, 52960, 57334, 58912, 61040, 72158, 73640, 74144, 84160, 87053, 92680, 105920, 114668, 117824, 122080, 143335, 144316, 147280, 148288, 174106, 180395, 185360, 200669, 229336, 244160, 252553, 286670, 288632, 294560, 348212, 360790, 370720, 401338, 435265, 458672, 505106, 573340, 577264, 589120, 609371, 696424, 721580, 741440, 802676, 870530, 917344, 1003345, 1010212, 1146680, 1154528, 1218742, 1262765, 1392848, 1443160, 1605352, 1741060, 1834688, 2006690, 2020424, 2293360, 2309056, 2437484, 2525530, 2785696, 2886320, 3046855, 3210704, 3482120, 4013380, 4040848, 4586720, 4874968, 5051060, 5571392, 5772640, 6093710, 6421408, 6964240, 8026760, 8081696, 9173440, 9488777, 9749936, 10102120, 11545280, 12187420, 12842816, 13928480, 16053520, 16163392, 18977554, 19499872, 20204240, 24374840, 27856960, 32107040, 37955108, 38999744, 40408480, 47443885, 48749680, 64214080, 66421439, 75910216, 80816960, 94887770, 97499360, 132842878, 151820432, 189775540, 194998720, 265685756, 303640864, 332107195, 379551080, 531371512, 607281728, 664214390, 759102160, 1062743024, 1328428780, 1518204320, 2125486048, 2656857560, 3036408640, 4250972096, 5313715120, 10627430240, 21254860480]

約数ペア:

[(1, 21254860480), (2, 10627430240), (4, 5313715120), (5, 4250972096), (7, 3036408640), (8, 2656857560), (10, 2125486048), (14, 1518204320), (16, 1328428780), (20, 1062743024), (28, 759102160), (32, 664214390), (35, 607281728), (40, 531371512), (56, 379551080), (64, 332107195), (70, 303640864), (80, 265685756), (109, 194998720), (112, 189775540), (140, 151820432), (160, 132842878), (218, 97499360), (224, 94887770), (263, 80816960), (280, 75910216), (320, 66421439), (331, 64214080), (436, 48749680), (448, 47443885), (526, 40408480), (545, 38999744), (560, 37955108), (662, 32107040), (763, 27856960), (872, 24374840), (1052, 20204240), (1090, 19499872), (1120, 18977554), (1315, 16163392), (1324, 16053520), (1526, 13928480), (1655, 12842816), (1744, 12187420), (1841, 11545280), (2104, 10102120), (2180, 9749936), (2240, 9488777), (2317, 9173440), (2630, 8081696), (2648, 8026760), (3052, 6964240), (3310, 6421408), (3488, 6093710), (3682, 5772640), (3815, 5571392), (4208, 5051060), (4360, 4874968), (4634, 4586720), (5260, 4040848), (5296, 4013380), (6104, 3482120), (6620, 3210704), (6976, 3046855), (7364, 2886320), (7630, 2785696), (8416, 2525530), (8720, 2437484), (9205, 2309056), (9268, 2293360), (10520, 2020424), (10592, 2006690), (11585, 1834688), (12208, 1741060), (13240, 1605352), (14728, 1443160), (15260, 1392848), (16832, 1262765), (17440, 1218742), (18410, 1154528), (18536, 1146680), (21040, 1010212), (21184, 1003345), (23170, 917344), (24416, 870530), (26480, 802676), (28667, 741440), (29456, 721580), (30520, 696424), (34880, 609371), (36079, 589120), (36820, 577264), (37072, 573340), (42080, 505106), (46340, 458672), (48832, 435265), (52960, 401338), (57334, 370720), (58912, 360790), (61040, 348212), (72158, 294560), (73640, 288632), (74144, 286670), (84160, 252553), (87053, 244160), (92680, 229336), (105920, 200669), (114668, 185360), (117824, 180395), (122080, 174106), (143335, 148288), (144316, 147280)]