398895840

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{4397}}^1$

素因数の和:4431

約数の個数: 240

約数和(自身を含む): 1609245792

約数和(自身を除く): 1210349952

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1890, 2016, 2160, 2268, 2520, 2592, 2835, 3024, 3240, 3360, 3780, 4320, 4397, 4536, 5040, 5670, 6048, 6480, 7560, 8794, 9072, 10080, 11340, 12960, 13191, 15120, 17588, 18144, 21985, 22680, 26382, 30240, 30779, 35176, 39573, 43970, 45360, 52764, 61558, 65955, 70352, 79146, 87940, 90720, 92337, 105528, 118719, 123116, 131910, 140704, 153895, 158292, 175880, 184674, 197865, 211056, 237438, 246232, 263820, 277011, 307790, 316584, 351760, 356157, 369348, 395730, 422112, 461685, 474876, 492464, 527640, 554022, 593595, 615580, 633168, 703520, 712314, 738696, 791460, 831033, 923370, 949752, 984928, 1055280, 1108044, 1187190, 1231160, 1266336, 1385055, 1424628, 1477392, 1582920, 1662066, 1780785, 1846740, 1899504, 2110560, 2216088, 2374380, 2462320, 2493099, 2770110, 2849256, 2954784, 3165840, 3324132, 3561570, 3693480, 3799008, 4155165, 4432176, 4748760, 4924640, 4986198, 5540220, 5698512, 6331680, 6648264, 7123140, 7386960, 8310330, 8864352, 9497520, 9972396, 11080440, 11397024, 12465495, 13296528, 14246280, 14773920, 16620660, 18995040, 19944792, 22160880, 24930990, 26593056, 28492560, 33241320, 39889584, 44321760, 49861980, 56985120, 66482640, 79779168, 99723960, 132965280, 199447920, 398895840]

約数ペア:

[(1, 398895840), (2, 199447920), (3, 132965280), (4, 99723960), (5, 79779168), (6, 66482640), (7, 56985120), (8, 49861980), (9, 44321760), (10, 39889584), (12, 33241320), (14, 28492560), (15, 26593056), (16, 24930990), (18, 22160880), (20, 19944792), (21, 18995040), (24, 16620660), (27, 14773920), (28, 14246280), (30, 13296528), (32, 12465495), (35, 11397024), (36, 11080440), (40, 9972396), (42, 9497520), (45, 8864352), (48, 8310330), (54, 7386960), (56, 7123140), (60, 6648264), (63, 6331680), (70, 5698512), (72, 5540220), (80, 4986198), (81, 4924640), (84, 4748760), (90, 4432176), (96, 4155165), (105, 3799008), (108, 3693480), (112, 3561570), (120, 3324132), (126, 3165840), (135, 2954784), (140, 2849256), (144, 2770110), (160, 2493099), (162, 2462320), (168, 2374380), (180, 2216088), (189, 2110560), (210, 1899504), (216, 1846740), (224, 1780785), (240, 1662066), (252, 1582920), (270, 1477392), (280, 1424628), (288, 1385055), (315, 1266336), (324, 1231160), (336, 1187190), (360, 1108044), (378, 1055280), (405, 984928), (420, 949752), (432, 923370), (480, 831033), (504, 791460), (540, 738696), (560, 712314), (567, 703520), (630, 633168), (648, 615580), (672, 593595), (720, 554022), (756, 527640), (810, 492464), (840, 474876), (864, 461685), (945, 422112), (1008, 395730), (1080, 369348), (1120, 356157), (1134, 351760), (1260, 316584), (1296, 307790), (1440, 277011), (1512, 263820), (1620, 246232), (1680, 237438), (1890, 211056), (2016, 197865), (2160, 184674), (2268, 175880), (2520, 158292), (2592, 153895), (2835, 140704), (3024, 131910), (3240, 123116), (3360, 118719), (3780, 105528), (4320, 92337), (4397, 90720), (4536, 87940), (5040, 79146), (5670, 70352), (6048, 65955), (6480, 61558), (7560, 52764), (8794, 45360), (9072, 43970), (10080, 39573), (11340, 35176), (12960, 30779), (13191, 30240), (15120, 26382), (17588, 22680), (18144, 21985)]