81414530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{5381}}^1$

素因数の和:5494

約数の個数: 32

約数和(自身を含む): 156939120

約数和(自身を除く): 75524590

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1513, 3026, 5381, 7565, 10762, 15130, 26905, 53810, 91477, 182954, 457385, 478909, 914770, 957818, 2394545, 4789090, 8141453, 16282906, 40707265, 81414530]

約数ペア:

[(1, 81414530), (2, 40707265), (5, 16282906), (10, 8141453), (17, 4789090), (34, 2394545), (85, 957818), (89, 914770), (170, 478909), (178, 457385), (445, 182954), (890, 91477), (1513, 53810), (3026, 26905), (5381, 15130), (7565, 10762)]