81354070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{6421}}^1$

素因数の和:6616

約数の個数: 32

約数和(自身を含む): 168307776

約数和(自身を除く): 86953706

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 181, 362, 905, 1267, 1810, 2534, 6335, 6421, 12670, 12842, 32105, 44947, 64210, 89894, 224735, 449470, 1162201, 2324402, 5811005, 8135407, 11622010, 16270814, 40677035, 81354070]

約数ペア:

[(1, 81354070), (2, 40677035), (5, 16270814), (7, 11622010), (10, 8135407), (14, 5811005), (35, 2324402), (70, 1162201), (181, 449470), (362, 224735), (905, 89894), (1267, 64210), (1810, 44947), (2534, 32105), (6335, 12842), (6421, 12670)]