440352770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{307939}}^1$

素因数の和:307970

約数の個数: 32

約数和(自身を含む): 931210560

約数和(自身を除く): 490857790

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 307939, 615878, 1539695, 3079390, 3387329, 4003207, 6774658, 8006414, 16936645, 20016035, 33873290, 40032070, 44035277, 88070554, 220176385, 440352770]

約数ペア:

[(1, 440352770), (2, 220176385), (5, 88070554), (10, 44035277), (11, 40032070), (13, 33873290), (22, 20016035), (26, 16936645), (55, 8006414), (65, 6774658), (110, 4003207), (130, 3387329), (143, 3079390), (286, 1539695), (715, 615878), (1430, 307939)]