2715220

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{389}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 5733000

約数和(自身を除く): 3017780

約数列:

[1, 2, 4, 5, 10, 20, 349, 389, 698, 778, 1396, 1556, 1745, 1945, 3490, 3890, 6980, 7780, 135761, 271522, 543044, 678805, 1357610, 2715220]

約数ペア:

[(1, 2715220), (2, 1357610), (4, 678805), (5, 543044), (10, 271522), (20, 135761), (349, 7780), (389, 6980), (698, 3890), (778, 3490), (1396, 1945), (1556, 1745)]