20327475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1249}}^1$

素因数の和:1300

約数の個数: 48

約数和(自身を含む): 39680000

約数和(自身を除く): 19352525

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 75, 93, 105, 155, 175, 217, 465, 525, 651, 775, 1085, 1249, 2325, 3255, 3747, 5425, 6245, 8743, 16275, 18735, 26229, 31225, 38719, 43715, 93675, 116157, 131145, 193595, 218575, 271033, 580785, 655725, 813099, 967975, 1355165, 2903925, 4065495, 6775825, 20327475]

約数ペア:

[(1, 20327475), (3, 6775825), (5, 4065495), (7, 2903925), (15, 1355165), (21, 967975), (25, 813099), (31, 655725), (35, 580785), (75, 271033), (93, 218575), (105, 193595), (155, 131145), (175, 116157), (217, 93675), (465, 43715), (525, 38719), (651, 31225), (775, 26229), (1085, 18735), (1249, 16275), (2325, 8743), (3255, 6245), (3747, 5425)]