20105050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 47139840

約数和(自身を除く): 27034790

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 31, 34, 35, 50, 62, 70, 85, 109, 119, 155, 170, 175, 217, 218, 238, 310, 350, 425, 434, 527, 545, 595, 763, 775, 850, 1054, 1085, 1090, 1190, 1526, 1550, 1853, 2170, 2635, 2725, 2975, 3379, 3689, 3706, 3815, 5270, 5425, 5450, 5950, 6758, 7378, 7630, 9265, 10850, 12971, 13175, 16895, 18445, 18530, 19075, 23653, 25942, 26350, 33790, 36890, 38150, 46325, 47306, 57443, 64855, 84475, 92225, 92650, 114886, 118265, 129710, 168950, 184450, 236530, 287215, 324275, 402101, 574430, 591325, 648550, 804202, 1182650, 1436075, 2010505, 2872150, 4021010, 10052525, 20105050]

約数ペア:

[(1, 20105050), (2, 10052525), (5, 4021010), (7, 2872150), (10, 2010505), (14, 1436075), (17, 1182650), (25, 804202), (31, 648550), (34, 591325), (35, 574430), (50, 402101), (62, 324275), (70, 287215), (85, 236530), (109, 184450), (119, 168950), (155, 129710), (170, 118265), (175, 114886), (217, 92650), (218, 92225), (238, 84475), (310, 64855), (350, 57443), (425, 47306), (434, 46325), (527, 38150), (545, 36890), (595, 33790), (763, 26350), (775, 25942), (850, 23653), (1054, 19075), (1085, 18530), (1090, 18445), (1190, 16895), (1526, 13175), (1550, 12971), (1853, 10850), (2170, 9265), (2635, 7630), (2725, 7378), (2975, 6758), (3379, 5950), (3689, 5450), (3706, 5425), (3815, 5270)]