20206725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3499}}^1$

素因数の和:3530

約数の個数: 48

約数和(自身を含む): 41664000

約数和(自身を除く): 21457275

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 3499, 5775, 10497, 17495, 24493, 38489, 52485, 73479, 87475, 115467, 122465, 192445, 262425, 269423, 367395, 577335, 612325, 808269, 962225, 1347115, 1836975, 2886675, 4041345, 6735575, 20206725]

約数ペア:

[(1, 20206725), (3, 6735575), (5, 4041345), (7, 2886675), (11, 1836975), (15, 1347115), (21, 962225), (25, 808269), (33, 612325), (35, 577335), (55, 367395), (75, 269423), (77, 262425), (105, 192445), (165, 122465), (175, 115467), (231, 87475), (275, 73479), (385, 52485), (525, 38489), (825, 24493), (1155, 17495), (1925, 10497), (3499, 5775)]