640959360

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1999}}^1$

素因数の和:2188

約数の個数: 128

約数和(自身を含む): 2056320000

約数和(自身を除く): 1415360640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 167, 192, 240, 320, 334, 384, 480, 501, 640, 668, 835, 960, 1002, 1336, 1670, 1920, 1999, 2004, 2505, 2672, 3340, 3998, 4008, 5010, 5344, 5997, 6680, 7996, 8016, 9995, 10020, 10688, 11994, 13360, 15992, 16032, 19990, 20040, 21376, 23988, 26720, 29985, 31984, 32064, 39980, 40080, 47976, 53440, 59970, 63968, 64128, 79960, 80160, 95952, 106880, 119940, 127936, 159920, 160320, 191904, 239880, 255872, 319840, 320640, 333833, 383808, 479760, 639680, 667666, 767616, 959520, 1001499, 1279360, 1335332, 1669165, 1919040, 2002998, 2670664, 3338330, 3838080, 4005996, 5007495, 5341328, 6676660, 8011992, 10014990, 10682656, 13353320, 16023984, 20029980, 21365312, 26706640, 32047968, 40059960, 42730624, 53413280, 64095936, 80119920, 106826560, 128191872, 160239840, 213653120, 320479680, 640959360]

約数ペア:

[(1, 640959360), (2, 320479680), (3, 213653120), (4, 160239840), (5, 128191872), (6, 106826560), (8, 80119920), (10, 64095936), (12, 53413280), (15, 42730624), (16, 40059960), (20, 32047968), (24, 26706640), (30, 21365312), (32, 20029980), (40, 16023984), (48, 13353320), (60, 10682656), (64, 10014990), (80, 8011992), (96, 6676660), (120, 5341328), (128, 5007495), (160, 4005996), (167, 3838080), (192, 3338330), (240, 2670664), (320, 2002998), (334, 1919040), (384, 1669165), (480, 1335332), (501, 1279360), (640, 1001499), (668, 959520), (835, 767616), (960, 667666), (1002, 639680), (1336, 479760), (1670, 383808), (1920, 333833), (1999, 320640), (2004, 319840), (2505, 255872), (2672, 239880), (3340, 191904), (3998, 160320), (4008, 159920), (5010, 127936), (5344, 119940), (5997, 106880), (6680, 95952), (7996, 80160), (8016, 79960), (9995, 64128), (10020, 63968), (10688, 59970), (11994, 53440), (13360, 47976), (15992, 40080), (16032, 39980), (19990, 32064), (20040, 31984), (21376, 29985), (23988, 26720)]