20724420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1637}}^1$

素因数の和:1860

約数の個数: 48

約数和(自身を含む): 58339008

約数和(自身を除く): 37614588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 1637, 2110, 2532, 3165, 3274, 4220, 4911, 6330, 6548, 8185, 9822, 12660, 16370, 19644, 24555, 32740, 49110, 98220, 345407, 690814, 1036221, 1381628, 1727035, 2072442, 3454070, 4144884, 5181105, 6908140, 10362210, 20724420]

約数ペア:

[(1, 20724420), (2, 10362210), (3, 6908140), (4, 5181105), (5, 4144884), (6, 3454070), (10, 2072442), (12, 1727035), (15, 1381628), (20, 1036221), (30, 690814), (60, 345407), (211, 98220), (422, 49110), (633, 32740), (844, 24555), (1055, 19644), (1266, 16370), (1637, 12660), (2110, 9822), (2532, 8185), (3165, 6548), (3274, 6330), (4220, 4911)]