205717260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{489803}}^1$

素因数の和:489822

約数の個数: 48

約数和(自身を含む): 658296576

約数和(自身を除く): 452579316

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 489803, 979606, 1469409, 1959212, 2449015, 2938818, 3428621, 4898030, 5877636, 6857242, 7347045, 9796060, 10285863, 13714484, 14694090, 17143105, 20571726, 29388180, 34286210, 41143452, 51429315, 68572420, 102858630, 205717260]

約数ペア:

[(1, 205717260), (2, 102858630), (3, 68572420), (4, 51429315), (5, 41143452), (6, 34286210), (7, 29388180), (10, 20571726), (12, 17143105), (14, 14694090), (15, 13714484), (20, 10285863), (21, 9796060), (28, 7347045), (30, 6857242), (35, 5877636), (42, 4898030), (60, 3428621), (70, 2938818), (84, 2449015), (105, 1959212), (140, 1469409), (210, 979606), (420, 489803)]