245894480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:349

約数の個数: 160

約数和(自身を含む): 659957760

約数和(自身を除く): 414063280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 31, 40, 52, 58, 62, 65, 80, 104, 116, 124, 130, 145, 155, 208, 232, 248, 260, 263, 290, 310, 377, 403, 464, 496, 520, 526, 580, 620, 754, 806, 899, 1040, 1052, 1160, 1240, 1315, 1508, 1612, 1798, 1885, 2015, 2104, 2320, 2480, 2630, 3016, 3224, 3419, 3596, 3770, 4030, 4208, 4495, 5260, 6032, 6448, 6838, 7192, 7540, 7627, 8060, 8153, 8990, 10520, 11687, 13676, 14384, 15080, 15254, 16120, 16306, 17095, 17980, 21040, 23374, 27352, 30160, 30508, 32240, 32612, 34190, 35960, 38135, 40765, 46748, 54704, 58435, 61016, 65224, 68380, 71920, 76270, 81530, 93496, 99151, 105989, 116870, 122032, 130448, 136760, 152540, 163060, 186992, 198302, 211978, 233740, 236437, 273520, 305080, 326120, 396604, 423956, 467480, 472874, 495755, 529945, 610160, 652240, 793208, 847912, 934960, 945748, 991510, 1059890, 1182185, 1586416, 1695824, 1891496, 1983020, 2119780, 2364370, 3073681, 3782992, 3966040, 4239560, 4728740, 6147362, 7932080, 8479120, 9457480, 12294724, 15368405, 18914960, 24589448, 30736810, 49178896, 61473620, 122947240, 245894480]

約数ペア:

[(1, 245894480), (2, 122947240), (4, 61473620), (5, 49178896), (8, 30736810), (10, 24589448), (13, 18914960), (16, 15368405), (20, 12294724), (26, 9457480), (29, 8479120), (31, 7932080), (40, 6147362), (52, 4728740), (58, 4239560), (62, 3966040), (65, 3782992), (80, 3073681), (104, 2364370), (116, 2119780), (124, 1983020), (130, 1891496), (145, 1695824), (155, 1586416), (208, 1182185), (232, 1059890), (248, 991510), (260, 945748), (263, 934960), (290, 847912), (310, 793208), (377, 652240), (403, 610160), (464, 529945), (496, 495755), (520, 472874), (526, 467480), (580, 423956), (620, 396604), (754, 326120), (806, 305080), (899, 273520), (1040, 236437), (1052, 233740), (1160, 211978), (1240, 198302), (1315, 186992), (1508, 163060), (1612, 152540), (1798, 136760), (1885, 130448), (2015, 122032), (2104, 116870), (2320, 105989), (2480, 99151), (2630, 93496), (3016, 81530), (3224, 76270), (3419, 71920), (3596, 68380), (3770, 65224), (4030, 61016), (4208, 58435), (4495, 54704), (5260, 46748), (6032, 40765), (6448, 38135), (6838, 35960), (7192, 34190), (7540, 32612), (7627, 32240), (8060, 30508), (8153, 30160), (8990, 27352), (10520, 23374), (11687, 21040), (13676, 17980), (14384, 17095), (15080, 16306), (15254, 16120)]