78653420

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{40543}}^1$

素因数の和:40649

約数の個数: 24

約数和(自身を含む): 166879104

約数和(自身を除く): 88225684

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 40543, 81086, 162172, 202715, 405430, 810860, 3932671, 7865342, 15730684, 19663355, 39326710, 78653420]

約数ペア:

[(1, 78653420), (2, 39326710), (4, 19663355), (5, 15730684), (10, 7865342), (20, 3932671), (97, 810860), (194, 405430), (388, 202715), (485, 162172), (970, 81086), (1940, 40543)]