123456990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{3343}}^1$

素因数の和:4584

約数の個数: 32

約数和(自身を含む): 296626176

約数和(自身を除く): 173169186

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 1231, 2462, 3343, 3693, 6155, 6686, 7386, 10029, 12310, 16715, 18465, 20058, 33430, 36930, 50145, 100290, 4115233, 8230466, 12345699, 20576165, 24691398, 41152330, 61728495, 123456990]

約数ペア:

[(1, 123456990), (2, 61728495), (3, 41152330), (5, 24691398), (6, 20576165), (10, 12345699), (15, 8230466), (30, 4115233), (1231, 100290), (2462, 50145), (3343, 36930), (3693, 33430), (6155, 20058), (6686, 18465), (7386, 16715), (10029, 12310)]