217416620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{727}}^1\times {\mathrm{787}}^1$

素因数の和:1542

約数の個数: 48

約数和(自身を含む): 481877760

約数和(自身を除く): 264461140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 727, 787, 1454, 1574, 2908, 3148, 3635, 3935, 7270, 7870, 13813, 14540, 14953, 15740, 27626, 29906, 55252, 59812, 69065, 74765, 138130, 149530, 276260, 299060, 572149, 1144298, 2288596, 2860745, 5721490, 10870831, 11442980, 21741662, 43483324, 54354155, 108708310, 217416620]

約数ペア:

[(1, 217416620), (2, 108708310), (4, 54354155), (5, 43483324), (10, 21741662), (19, 11442980), (20, 10870831), (38, 5721490), (76, 2860745), (95, 2288596), (190, 1144298), (380, 572149), (727, 299060), (787, 276260), (1454, 149530), (1574, 138130), (2908, 74765), (3148, 69065), (3635, 59812), (3935, 55252), (7270, 29906), (7870, 27626), (13813, 15740), (14540, 14953)]