211860920

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{6547}}^1$

素因数の和:7367

約数の個数: 32

約数和(自身を含む): 477349200

約数和(自身を除く): 265488280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 3236, 4045, 6472, 6547, 8090, 13094, 16180, 26188, 32360, 32735, 52376, 65470, 130940, 261880, 5296523, 10593046, 21186092, 26482615, 42372184, 52965230, 105930460, 211860920]

約数ペア:

[(1, 211860920), (2, 105930460), (4, 52965230), (5, 42372184), (8, 26482615), (10, 21186092), (20, 10593046), (40, 5296523), (809, 261880), (1618, 130940), (3236, 65470), (4045, 52376), (6472, 32735), (6547, 32360), (8090, 26188), (13094, 16180)]