20740115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 8290285

約数列:

[1, 5, 11, 19, 55, 89, 95, 209, 223, 445, 979, 1045, 1115, 1691, 2453, 4237, 4895, 8455, 12265, 18601, 19847, 21185, 46607, 93005, 99235, 218317, 233035, 377093, 1091585, 1885465, 4148023, 20740115]

約数ペア:

[(1, 20740115), (5, 4148023), (11, 1885465), (19, 1091585), (55, 377093), (89, 233035), (95, 218317), (209, 99235), (223, 93005), (445, 46607), (979, 21185), (1045, 19847), (1115, 18601), (1691, 12265), (2453, 8455), (4237, 4895)]