81518930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{881}}^1$

素因数の和:1394

約数の個数: 32

約数和(自身を含む): 154949760

約数和(自身を除く): 73430830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 487, 881, 974, 1762, 2435, 4405, 4870, 8810, 9253, 16739, 18506, 33478, 46265, 83695, 92530, 167390, 429047, 858094, 2145235, 4290470, 8151893, 16303786, 40759465, 81518930]

約数ペア:

[(1, 81518930), (2, 40759465), (5, 16303786), (10, 8151893), (19, 4290470), (38, 2145235), (95, 858094), (190, 429047), (487, 167390), (881, 92530), (974, 83695), (1762, 46265), (2435, 33478), (4405, 18506), (4870, 16739), (8810, 9253)]