28040390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{727}}^1$

素因数の和:789

約数の個数: 64

約数和(自身を含む): 62899200

約数和(自身を除く): 34858810

約数列:

[1, 2, 5, 7, 10, 14, 19, 29, 35, 38, 58, 70, 95, 133, 145, 190, 203, 266, 290, 406, 551, 665, 727, 1015, 1102, 1330, 1454, 2030, 2755, 3635, 3857, 5089, 5510, 7270, 7714, 10178, 13813, 19285, 21083, 25445, 27626, 38570, 42166, 50890, 69065, 96691, 105415, 138130, 147581, 193382, 210830, 295162, 400577, 483455, 737905, 801154, 966910, 1475810, 2002885, 2804039, 4005770, 5608078, 14020195, 28040390]

約数ペア:

[(1, 28040390), (2, 14020195), (5, 5608078), (7, 4005770), (10, 2804039), (14, 2002885), (19, 1475810), (29, 966910), (35, 801154), (38, 737905), (58, 483455), (70, 400577), (95, 295162), (133, 210830), (145, 193382), (190, 147581), (203, 138130), (266, 105415), (290, 96691), (406, 69065), (551, 50890), (665, 42166), (727, 38570), (1015, 27626), (1102, 25445), (1330, 21083), (1454, 19285), (2030, 13813), (2755, 10178), (3635, 7714), (3857, 7270), (5089, 5510)]