20858300

素因数分解:

$2^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{1249}}^1$

素因数の和:1430

約数の個数: 36

約数和(自身を含む): 45570000

約数和(自身を除く): 24711700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 167, 334, 668, 835, 1249, 1670, 2498, 3340, 4175, 4996, 6245, 8350, 12490, 16700, 24980, 31225, 62450, 124900, 208583, 417166, 834332, 1042915, 2085830, 4171660, 5214575, 10429150, 20858300]

約数ペア:

[(1, 20858300), (2, 10429150), (4, 5214575), (5, 4171660), (10, 2085830), (20, 1042915), (25, 834332), (50, 417166), (100, 208583), (167, 124900), (334, 62450), (668, 31225), (835, 24980), (1249, 16700), (1670, 12490), (2498, 8350), (3340, 6245), (4175, 4996)]