20130980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 44634240

約数和(自身を除く): 24503260

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 107, 115, 214, 230, 409, 428, 460, 535, 818, 1070, 1636, 2045, 2140, 2461, 4090, 4922, 8180, 9407, 9844, 12305, 18814, 24610, 37628, 43763, 47035, 49220, 87526, 94070, 175052, 188140, 218815, 437630, 875260, 1006549, 2013098, 4026196, 5032745, 10065490, 20130980]

約数ペア:

[(1, 20130980), (2, 10065490), (4, 5032745), (5, 4026196), (10, 2013098), (20, 1006549), (23, 875260), (46, 437630), (92, 218815), (107, 188140), (115, 175052), (214, 94070), (230, 87526), (409, 49220), (428, 47035), (460, 43763), (535, 37628), (818, 24610), (1070, 18814), (1636, 12305), (2045, 9844), (2140, 9407), (2461, 8180), (4090, 4922)]