2689726280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1640077}}^1$

素因数の和:1640129

約数の個数: 32

約数和(自身を含む): 6199494840

約数和(自身を除く): 3509768560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1640077, 3280154, 6560308, 8200385, 13120616, 16400770, 32801540, 65603080, 67243157, 134486314, 268972628, 336215785, 537945256, 672431570, 1344863140, 2689726280]

約数ペア:

[(1, 2689726280), (2, 1344863140), (4, 672431570), (5, 537945256), (8, 336215785), (10, 268972628), (20, 134486314), (40, 67243157), (41, 65603080), (82, 32801540), (164, 16400770), (205, 13120616), (328, 8200385), (410, 6560308), (820, 3280154), (1640, 1640077)]