18485440

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{947}}^1$

素因数の和:1025

約数の個数: 56

約数和(自身を含む): 44787312

約数和(自身を除く): 26301872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 947, 976, 1220, 1894, 1952, 2440, 3788, 3904, 4735, 4880, 7576, 9470, 9760, 15152, 18940, 19520, 30304, 37880, 57767, 60608, 75760, 115534, 151520, 231068, 288835, 303040, 462136, 577670, 924272, 1155340, 1848544, 2310680, 3697088, 4621360, 9242720, 18485440]

約数ペア:

[(1, 18485440), (2, 9242720), (4, 4621360), (5, 3697088), (8, 2310680), (10, 1848544), (16, 1155340), (20, 924272), (32, 577670), (40, 462136), (61, 303040), (64, 288835), (80, 231068), (122, 151520), (160, 115534), (244, 75760), (305, 60608), (320, 57767), (488, 37880), (610, 30304), (947, 19520), (976, 18940), (1220, 15152), (1894, 9760), (1952, 9470), (2440, 7576), (3788, 4880), (3904, 4735)]