320479680

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1999}}^1$

素因数の和:2186

約数の個数: 112

約数和(自身を含む): 1024128000

約数和(自身を除く): 703648320

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, 160, 167, 192, 240, 320, 334, 480, 501, 668, 835, 960, 1002, 1336, 1670, 1999, 2004, 2505, 2672, 3340, 3998, 4008, 5010, 5344, 5997, 6680, 7996, 8016, 9995, 10020, 10688, 11994, 13360, 15992, 16032, 19990, 20040, 23988, 26720, 29985, 31984, 32064, 39980, 40080, 47976, 53440, 59970, 63968, 79960, 80160, 95952, 119940, 127936, 159920, 160320, 191904, 239880, 319840, 333833, 383808, 479760, 639680, 667666, 959520, 1001499, 1335332, 1669165, 1919040, 2002998, 2670664, 3338330, 4005996, 5007495, 5341328, 6676660, 8011992, 10014990, 10682656, 13353320, 16023984, 20029980, 21365312, 26706640, 32047968, 40059960, 53413280, 64095936, 80119920, 106826560, 160239840, 320479680]

約数ペア:

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