388383405

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{751}}^1\times {\mathrm{1499}}^1$

素因数の和:2281

約数の個数: 32

約数和(自身を含む): 649728000

約数和(自身を除く): 261344595

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 751, 1499, 2253, 3755, 4497, 7495, 11265, 17273, 22485, 34477, 51819, 86365, 103431, 172385, 259095, 517155, 1125749, 3377247, 5628745, 16886235, 25892227, 77676681, 129461135, 388383405]

約数ペア:

[(1, 388383405), (3, 129461135), (5, 77676681), (15, 25892227), (23, 16886235), (69, 5628745), (115, 3377247), (345, 1125749), (751, 517155), (1499, 259095), (2253, 172385), (3755, 103431), (4497, 86365), (7495, 51819), (11265, 34477), (17273, 22485)]