81859415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{397}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 112790016

約数和(自身を除く): 30930601

約数列:

[1, 5, 11, 23, 55, 115, 163, 253, 397, 815, 1265, 1793, 1985, 3749, 4367, 8965, 9131, 18745, 21835, 41239, 45655, 64711, 100441, 206195, 323555, 502205, 711821, 1488353, 3559105, 7441765, 16371883, 81859415]

約数ペア:

[(1, 81859415), (5, 16371883), (11, 7441765), (23, 3559105), (55, 1488353), (115, 711821), (163, 502205), (253, 323555), (397, 206195), (815, 100441), (1265, 64711), (1793, 45655), (1985, 41239), (3749, 21835), (4367, 18745), (8965, 9131)]