20210300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{967}}^1$

素因数の和:1011

約数の個数: 72

約数和(自身を含む): 50413440

約数和(自身を除く): 30203140

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 950, 967, 1045, 1100, 1900, 1934, 2090, 3868, 4180, 4835, 5225, 9670, 10450, 10637, 18373, 19340, 20900, 21274, 24175, 36746, 42548, 48350, 53185, 73492, 91865, 96700, 106370, 183730, 202103, 212740, 265925, 367460, 404206, 459325, 531850, 808412, 918650, 1010515, 1063700, 1837300, 2021030, 4042060, 5052575, 10105150, 20210300]

約数ペア:

[(1, 20210300), (2, 10105150), (4, 5052575), (5, 4042060), (10, 2021030), (11, 1837300), (19, 1063700), (20, 1010515), (22, 918650), (25, 808412), (38, 531850), (44, 459325), (50, 404206), (55, 367460), (76, 265925), (95, 212740), (100, 202103), (110, 183730), (190, 106370), (209, 96700), (220, 91865), (275, 73492), (380, 53185), (418, 48350), (475, 42548), (550, 36746), (836, 24175), (950, 21274), (967, 20900), (1045, 19340), (1100, 18373), (1900, 10637), (1934, 10450), (2090, 9670), (3868, 5225), (4180, 4835)]