2017790215

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{7643}}^1$

素因数の和:8071

約数の個数: 32

約数和(自身を含む): 2920619520

約数和(自身を除く): 902829305

約数列:

[1, 5, 7, 19, 35, 95, 133, 397, 665, 1985, 2779, 7543, 7643, 13895, 37715, 38215, 52801, 53501, 145217, 264005, 267505, 726085, 1016519, 3034271, 5082595, 15171355, 21239897, 57651149, 106199485, 288255745, 403558043, 2017790215]

約数ペア:

[(1, 2017790215), (5, 403558043), (7, 288255745), (19, 106199485), (35, 57651149), (95, 21239897), (133, 15171355), (397, 5082595), (665, 3034271), (1985, 1016519), (2779, 726085), (7543, 267505), (7643, 264005), (13895, 145217), (37715, 53501), (38215, 52801)]