78401620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{20963}}^1$

素因数の和:21000

約数の個数: 48

約数和(自身を含む): 190185408

約数和(自身を除く): 111783788

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 20963, 41926, 83852, 104815, 209630, 230593, 356371, 419260, 461186, 712742, 922372, 1152965, 1425484, 1781855, 2305930, 3563710, 3920081, 4611860, 7127420, 7840162, 15680324, 19600405, 39200810, 78401620]

約数ペア:

[(1, 78401620), (2, 39200810), (4, 19600405), (5, 15680324), (10, 7840162), (11, 7127420), (17, 4611860), (20, 3920081), (22, 3563710), (34, 2305930), (44, 1781855), (55, 1425484), (68, 1152965), (85, 922372), (110, 712742), (170, 461186), (187, 419260), (220, 356371), (340, 230593), (374, 209630), (748, 104815), (935, 83852), (1870, 41926), (3740, 20963)]