490772009

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 622809600

約数和(自身を除く): 132037591

約数列:

[1, 7, 13, 41, 91, 199, 287, 533, 661, 1393, 2587, 3731, 4627, 8159, 8593, 18109, 27101, 57113, 60151, 106067, 131539, 189707, 352313, 742469, 920773, 1710007, 2466191, 5393099, 11970049, 37751693, 70110287, 490772009]

約数ペア:

[(1, 490772009), (7, 70110287), (13, 37751693), (41, 11970049), (91, 5393099), (199, 2466191), (287, 1710007), (533, 920773), (661, 742469), (1393, 352313), (2587, 189707), (3731, 131539), (4627, 106067), (8159, 60151), (8593, 57113), (18109, 27101)]