817752680

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{210761}}^1$

素因数の和:210869

約数の個数: 32

約数和(自身を含む): 1858920840

約数和(自身を除く): 1041168160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 210761, 421522, 843044, 1053805, 1686088, 2107610, 4215220, 8430440, 20443817, 40887634, 81775268, 102219085, 163550536, 204438170, 408876340, 817752680]

約数ペア:

[(1, 817752680), (2, 408876340), (4, 204438170), (5, 163550536), (8, 102219085), (10, 81775268), (20, 40887634), (40, 20443817), (97, 8430440), (194, 4215220), (388, 2107610), (485, 1686088), (776, 1053805), (970, 843044), (1940, 421522), (3880, 210761)]