2555900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:494

約数の個数: 36

約数和(自身を含む): 5650680

約数和(自身を除く): 3094780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 419, 610, 838, 1220, 1525, 1676, 2095, 3050, 4190, 6100, 8380, 10475, 20950, 25559, 41900, 51118, 102236, 127795, 255590, 511180, 638975, 1277950, 2555900]

約数ペア:

[(1, 2555900), (2, 1277950), (4, 638975), (5, 511180), (10, 255590), (20, 127795), (25, 102236), (50, 51118), (61, 41900), (100, 25559), (122, 20950), (244, 10475), (305, 8380), (419, 6100), (610, 4190), (838, 3050), (1220, 2095), (1525, 1676)]