20652890

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17449510

約数列:

[1, 2, 5, 10, 83, 149, 166, 167, 298, 334, 415, 745, 830, 835, 1490, 1670, 12367, 13861, 24734, 24883, 27722, 49766, 61835, 69305, 123670, 124415, 138610, 248830, 2065289, 4130578, 10326445, 20652890]

約数ペア:

[(1, 20652890), (2, 10326445), (5, 4130578), (10, 2065289), (83, 248830), (149, 138610), (166, 124415), (167, 123670), (298, 69305), (334, 61835), (415, 49766), (745, 27722), (830, 24883), (835, 24734), (1490, 13861), (1670, 12367)]