2020119280

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{139511}}^1$

素因数の和:139705

約数の個数: 40

約数和(自身を含む): 4722760224

約数和(自身を除く): 2702640944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 14480, 139511, 279022, 558044, 697555, 1116088, 1395110, 2232176, 2790220, 5580440, 11160880, 25251491, 50502982, 101005964, 126257455, 202011928, 252514910, 404023856, 505029820, 1010059640, 2020119280]

約数ペア:

[(1, 2020119280), (2, 1010059640), (4, 505029820), (5, 404023856), (8, 252514910), (10, 202011928), (16, 126257455), (20, 101005964), (40, 50502982), (80, 25251491), (181, 11160880), (362, 5580440), (724, 2790220), (905, 2232176), (1448, 1395110), (1810, 1116088), (2896, 697555), (3620, 558044), (7240, 279022), (14480, 139511)]