268338512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{21149}}^1$

素因数の和:21231

約数の個数: 40

約数和(自身を含む): 569104200

約数和(自身を除く): 300765688

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 3172, 6344, 12688, 21149, 42298, 84596, 169192, 274937, 338384, 549874, 1099748, 1290089, 2199496, 2580178, 4398992, 5160356, 10320712, 16771157, 20641424, 33542314, 67084628, 134169256, 268338512]

約数ペア:

[(1, 268338512), (2, 134169256), (4, 67084628), (8, 33542314), (13, 20641424), (16, 16771157), (26, 10320712), (52, 5160356), (61, 4398992), (104, 2580178), (122, 2199496), (208, 1290089), (244, 1099748), (488, 549874), (793, 338384), (976, 274937), (1586, 169192), (3172, 84596), (6344, 42298), (12688, 21149)]