20667250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^2\times {\mathrm{229}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 41010840

約数和(自身を除く): 20343590

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 229, 250, 361, 458, 475, 722, 950, 1145, 1805, 2290, 2375, 3610, 4351, 4750, 5725, 8702, 9025, 11450, 18050, 21755, 28625, 43510, 45125, 57250, 82669, 90250, 108775, 165338, 217550, 413345, 543875, 826690, 1087750, 2066725, 4133450, 10333625, 20667250]

約数ペア:

[(1, 20667250), (2, 10333625), (5, 4133450), (10, 2066725), (19, 1087750), (25, 826690), (38, 543875), (50, 413345), (95, 217550), (125, 165338), (190, 108775), (229, 90250), (250, 82669), (361, 57250), (458, 45125), (475, 43510), (722, 28625), (950, 21755), (1145, 18050), (1805, 11450), (2290, 9025), (2375, 8702), (3610, 5725), (4351, 4750)]