18090875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 25159680

約数和(自身を除く): 7068805

約数列:

[1, 5, 11, 25, 55, 59, 125, 223, 275, 295, 649, 1115, 1375, 1475, 2453, 3245, 5575, 7375, 12265, 13157, 16225, 27875, 61325, 65785, 81125, 144727, 306625, 328925, 723635, 1644625, 3618175, 18090875]

約数ペア:

[(1, 18090875), (5, 3618175), (11, 1644625), (25, 723635), (55, 328925), (59, 306625), (125, 144727), (223, 81125), (275, 65785), (295, 61325), (649, 27875), (1115, 16225), (1375, 13157), (1475, 12265), (2453, 7375), (3245, 5575)]