18888921760

素因数分解:

$2^5\times 5^1\times {\mathrm{269}}^1\times {\mathrm{438869}}^1$

素因数の和:439153

約数の個数: 48

約数和(自身を含む): 44791072200

約数和(自身を除く): 25902150440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 269, 538, 1076, 1345, 2152, 2690, 4304, 5380, 8608, 10760, 21520, 43040, 438869, 877738, 1755476, 2194345, 3510952, 4388690, 7021904, 8777380, 14043808, 17554760, 35109520, 70219040, 118055761, 236111522, 472223044, 590278805, 944446088, 1180557610, 1888892176, 2361115220, 3777784352, 4722230440, 9444460880, 18888921760]

約数ペア:

[(1, 18888921760), (2, 9444460880), (4, 4722230440), (5, 3777784352), (8, 2361115220), (10, 1888892176), (16, 1180557610), (20, 944446088), (32, 590278805), (40, 472223044), (80, 236111522), (160, 118055761), (269, 70219040), (538, 35109520), (1076, 17554760), (1345, 14043808), (2152, 8777380), (2690, 7021904), (4304, 4388690), (5380, 3510952), (8608, 2194345), (10760, 1755476), (21520, 877738), (43040, 438869)]