20871100

素因数分解:

$2^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1847}}^1$

素因数の和:1974

約数の個数: 36

約数和(自身を含む): 45715824

約数和(自身を除く): 24844724

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 226, 452, 565, 1130, 1847, 2260, 2825, 3694, 5650, 7388, 9235, 11300, 18470, 36940, 46175, 92350, 184700, 208711, 417422, 834844, 1043555, 2087110, 4174220, 5217775, 10435550, 20871100]

約数ペア:

[(1, 20871100), (2, 10435550), (4, 5217775), (5, 4174220), (10, 2087110), (20, 1043555), (25, 834844), (50, 417422), (100, 208711), (113, 184700), (226, 92350), (452, 46175), (565, 36940), (1130, 18470), (1847, 11300), (2260, 9235), (2825, 7388), (3694, 5650)]