20755560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24709}}^1$

素因数の和:24730

約数の個数: 64

約数和(自身を含む): 71164800

約数和(自身を除く): 50409240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24709, 49418, 74127, 98836, 123545, 148254, 172963, 197672, 247090, 296508, 345926, 370635, 494180, 518889, 593016, 691852, 741270, 864815, 988360, 1037778, 1383704, 1482540, 1729630, 2075556, 2594445, 2965080, 3459260, 4151112, 5188890, 6918520, 10377780, 20755560]

約数ペア:

[(1, 20755560), (2, 10377780), (3, 6918520), (4, 5188890), (5, 4151112), (6, 3459260), (7, 2965080), (8, 2594445), (10, 2075556), (12, 1729630), (14, 1482540), (15, 1383704), (20, 1037778), (21, 988360), (24, 864815), (28, 741270), (30, 691852), (35, 593016), (40, 518889), (42, 494180), (56, 370635), (60, 345926), (70, 296508), (84, 247090), (105, 197672), (120, 172963), (140, 148254), (168, 123545), (210, 98836), (280, 74127), (420, 49418), (840, 24709)]