680900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{619}}^1$

素因数の和:644

約数の個数: 36

約数和(自身を含む): 1614480

約数和(自身を除く): 933580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 619, 1100, 1238, 2476, 3095, 6190, 6809, 12380, 13618, 15475, 27236, 30950, 34045, 61900, 68090, 136180, 170225, 340450, 680900]

約数ペア:

[(1, 680900), (2, 340450), (4, 170225), (5, 136180), (10, 68090), (11, 61900), (20, 34045), (22, 30950), (25, 27236), (44, 15475), (50, 13618), (55, 12380), (100, 6809), (110, 6190), (220, 3095), (275, 2476), (550, 1238), (619, 1100)]