81403768

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5381}}^1$

素因数の和:5479

約数の個数: 32

約数和(自身を含む): 160168320

約数和(自身を除く): 78764552

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 244, 248, 488, 1891, 3782, 5381, 7564, 10762, 15128, 21524, 43048, 166811, 328241, 333622, 656482, 667244, 1312964, 1334488, 2625928, 10175471, 20350942, 40701884, 81403768]

約数ペア:

[(1, 81403768), (2, 40701884), (4, 20350942), (8, 10175471), (31, 2625928), (61, 1334488), (62, 1312964), (122, 667244), (124, 656482), (244, 333622), (248, 328241), (488, 166811), (1891, 43048), (3782, 21524), (5381, 15128), (7564, 10762)]