28967240

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{4001}}^1$

素因数の和:4193

約数の個数: 32

約数和(自身を含む): 65552760

約数和(自身を除く): 36585520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 4001, 7240, 8002, 16004, 20005, 32008, 40010, 80020, 160040, 724181, 1448362, 2896724, 3620905, 5793448, 7241810, 14483620, 28967240]

約数ペア:

[(1, 28967240), (2, 14483620), (4, 7241810), (5, 5793448), (8, 3620905), (10, 2896724), (20, 1448362), (40, 724181), (181, 160040), (362, 80020), (724, 40010), (905, 32008), (1448, 20005), (1810, 16004), (3620, 8002), (4001, 7240)]