2209420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1811}}^1$

素因数の和:1881

約数の個数: 24

約数和(自身を含む): 4718448

約数和(自身を除く): 2509028

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1811, 3622, 7244, 9055, 18110, 36220, 110471, 220942, 441884, 552355, 1104710, 2209420]

約数ペア:

[(1, 2209420), (2, 1104710), (4, 552355), (5, 441884), (10, 220942), (20, 110471), (61, 36220), (122, 18110), (244, 9055), (305, 7244), (610, 3622), (1220, 1811)]