2018992955

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1\times {\mathrm{2903}}^1$

素因数の和:3587

約数の個数: 32

約数和(自身を含む): 2863669248

約数和(自身を除く): 844676293

約数列:

[1, 5, 7, 31, 35, 155, 217, 641, 1085, 2903, 3205, 4487, 14515, 19871, 20321, 22435, 89993, 99355, 101605, 139097, 449965, 629951, 695485, 1860823, 3149755, 9304115, 13025761, 57685513, 65128805, 288427565, 403798591, 2018992955]

約数ペア:

[(1, 2018992955), (5, 403798591), (7, 288427565), (31, 65128805), (35, 57685513), (155, 13025761), (217, 9304115), (641, 3149755), (1085, 1860823), (2903, 695485), (3205, 629951), (4487, 449965), (14515, 139097), (19871, 101605), (20321, 99355), (22435, 89993)]