20506750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7457}}^1$

素因数の和:7485

約数の個数: 32

約数和(自身を含む): 41884128

約数和(自身を除く): 21377378

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7457, 14914, 37285, 74570, 82027, 164054, 186425, 372850, 410135, 820270, 932125, 1864250, 2050675, 4101350, 10253375, 20506750]

約数ペア:

[(1, 20506750), (2, 10253375), (5, 4101350), (10, 2050675), (11, 1864250), (22, 932125), (25, 820270), (50, 410135), (55, 372850), (110, 186425), (125, 164054), (250, 82027), (275, 74570), (550, 37285), (1375, 14914), (2750, 7457)]