81475935

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1193}}^1$

素因数の和:1387

約数の個数: 32

約数和(自身を含む): 135829440

約数和(自身を除く): 54353505

約数列:

[1, 3, 5, 15, 29, 87, 145, 157, 435, 471, 785, 1193, 2355, 3579, 4553, 5965, 13659, 17895, 22765, 34597, 68295, 103791, 172985, 187301, 518955, 561903, 936505, 2809515, 5431729, 16295187, 27158645, 81475935]

約数ペア:

[(1, 81475935), (3, 27158645), (5, 16295187), (15, 5431729), (29, 2809515), (87, 936505), (145, 561903), (157, 518955), (435, 187301), (471, 172985), (785, 103791), (1193, 68295), (2355, 34597), (3579, 22765), (4553, 17895), (5965, 13659)]