1999403840

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{4397}}^1$

素因数の和:4457

約数の個数: 168

約数和(自身を含む): 5730681960

約数和(自身を除く): 3731278120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 64, 70, 80, 98, 112, 116, 140, 145, 160, 196, 203, 224, 232, 245, 280, 290, 320, 392, 406, 448, 464, 490, 560, 580, 784, 812, 928, 980, 1015, 1120, 1160, 1421, 1568, 1624, 1856, 1960, 2030, 2240, 2320, 2842, 3136, 3248, 3920, 4060, 4397, 4640, 5684, 6496, 7105, 7840, 8120, 8794, 9280, 11368, 12992, 14210, 15680, 16240, 17588, 21985, 22736, 28420, 30779, 32480, 35176, 43970, 45472, 56840, 61558, 64960, 70352, 87940, 90944, 113680, 123116, 127513, 140704, 153895, 175880, 215453, 227360, 246232, 255026, 281408, 307790, 351760, 430906, 454720, 492464, 510052, 615580, 637565, 703520, 861812, 892591, 984928, 1020104, 1077265, 1231160, 1275130, 1407040, 1723624, 1785182, 1969856, 2040208, 2154530, 2462320, 2550260, 3447248, 3570364, 4080416, 4309060, 4462955, 4924640, 5100520, 6248137, 6894496, 7140728, 8160832, 8618120, 8925910, 9849280, 10201040, 12496274, 13788992, 14281456, 17236240, 17851820, 20402080, 24992548, 28562912, 31240685, 34472480, 35703640, 40804160, 49985096, 57125824, 62481370, 68944960, 71407280, 99970192, 124962740, 142814560, 199940384, 249925480, 285629120, 399880768, 499850960, 999701920, 1999403840]

約数ペア:

[(1, 1999403840), (2, 999701920), (4, 499850960), (5, 399880768), (7, 285629120), (8, 249925480), (10, 199940384), (14, 142814560), (16, 124962740), (20, 99970192), (28, 71407280), (29, 68944960), (32, 62481370), (35, 57125824), (40, 49985096), (49, 40804160), (56, 35703640), (58, 34472480), (64, 31240685), (70, 28562912), (80, 24992548), (98, 20402080), (112, 17851820), (116, 17236240), (140, 14281456), (145, 13788992), (160, 12496274), (196, 10201040), (203, 9849280), (224, 8925910), (232, 8618120), (245, 8160832), (280, 7140728), (290, 6894496), (320, 6248137), (392, 5100520), (406, 4924640), (448, 4462955), (464, 4309060), (490, 4080416), (560, 3570364), (580, 3447248), (784, 2550260), (812, 2462320), (928, 2154530), (980, 2040208), (1015, 1969856), (1120, 1785182), (1160, 1723624), (1421, 1407040), (1568, 1275130), (1624, 1231160), (1856, 1077265), (1960, 1020104), (2030, 984928), (2240, 892591), (2320, 861812), (2842, 703520), (3136, 637565), (3248, 615580), (3920, 510052), (4060, 492464), (4397, 454720), (4640, 430906), (5684, 351760), (6496, 307790), (7105, 281408), (7840, 255026), (8120, 246232), (8794, 227360), (9280, 215453), (11368, 175880), (12992, 153895), (14210, 140704), (15680, 127513), (16240, 123116), (17588, 113680), (21985, 90944), (22736, 87940), (28420, 70352), (30779, 64960), (32480, 61558), (35176, 56840), (43970, 45472)]