20187178920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1808887}}^1$

素因数の和:1808935

約数の個数: 96

約数和(自身を含む): 67724766720

約数和(自身を除く): 47537587800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 2232, 2790, 3720, 5580, 11160, 1808887, 3617774, 5426661, 7235548, 9044435, 10853322, 14471096, 16279983, 18088870, 21706644, 27133305, 32559966, 36177740, 43413288, 54266610, 56075497, 65119932, 72355480, 81399915, 108533220, 112150994, 130239864, 162799830, 168226491, 217066440, 224301988, 280377485, 325599660, 336452982, 448603976, 504679473, 560754970, 651199320, 672905964, 841132455, 1009358946, 1121509940, 1345811928, 1682264910, 2018717892, 2243019880, 2523397365, 3364529820, 4037435784, 5046794730, 6729059640, 10093589460, 20187178920]

約数ペア:

[(1, 20187178920), (2, 10093589460), (3, 6729059640), (4, 5046794730), (5, 4037435784), (6, 3364529820), (8, 2523397365), (9, 2243019880), (10, 2018717892), (12, 1682264910), (15, 1345811928), (18, 1121509940), (20, 1009358946), (24, 841132455), (30, 672905964), (31, 651199320), (36, 560754970), (40, 504679473), (45, 448603976), (60, 336452982), (62, 325599660), (72, 280377485), (90, 224301988), (93, 217066440), (120, 168226491), (124, 162799830), (155, 130239864), (180, 112150994), (186, 108533220), (248, 81399915), (279, 72355480), (310, 65119932), (360, 56075497), (372, 54266610), (465, 43413288), (558, 36177740), (620, 32559966), (744, 27133305), (930, 21706644), (1116, 18088870), (1240, 16279983), (1395, 14471096), (1860, 10853322), (2232, 9044435), (2790, 7235548), (3720, 5426661), (5580, 3617774), (11160, 1808887)]