20300740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1372

約数の個数: 48

約数和(自身を含む): 46005120

約数和(自身を除く): 25704380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1303, 1558, 2606, 3116, 3895, 5212, 6515, 7790, 13030, 15580, 24757, 26060, 49514, 53423, 99028, 106846, 123785, 213692, 247570, 267115, 495140, 534230, 1015037, 1068460, 2030074, 4060148, 5075185, 10150370, 20300740]

約数ペア:

[(1, 20300740), (2, 10150370), (4, 5075185), (5, 4060148), (10, 2030074), (19, 1068460), (20, 1015037), (38, 534230), (41, 495140), (76, 267115), (82, 247570), (95, 213692), (164, 123785), (190, 106846), (205, 99028), (380, 53423), (410, 49514), (779, 26060), (820, 24757), (1303, 15580), (1558, 13030), (2606, 7790), (3116, 6515), (3895, 5212)]