428450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:83

約数の個数: 48

約数和(自身を含む): 937440

約数和(自身を除く): 508990

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 41, 50, 55, 82, 95, 110, 190, 205, 209, 275, 410, 418, 451, 475, 550, 779, 902, 950, 1025, 1045, 1558, 2050, 2090, 2255, 3895, 4510, 5225, 7790, 8569, 10450, 11275, 17138, 19475, 22550, 38950, 42845, 85690, 214225, 428450]

約数ペア:

[(1, 428450), (2, 214225), (5, 85690), (10, 42845), (11, 38950), (19, 22550), (22, 19475), (25, 17138), (38, 11275), (41, 10450), (50, 8569), (55, 7790), (82, 5225), (95, 4510), (110, 3895), (190, 2255), (205, 2090), (209, 2050), (275, 1558), (410, 1045), (418, 1025), (451, 950), (475, 902), (550, 779)]