165721840

素因数分解:

$2^4\times 5^1\times {\mathrm{587}}^1\times {\mathrm{3529}}^1$

素因数の和:4129

約数の個数: 40

約数和(自身を含む): 386069040

約数和(自身を除く): 220347200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 587, 1174, 2348, 2935, 3529, 4696, 5870, 7058, 9392, 11740, 14116, 17645, 23480, 28232, 35290, 46960, 56464, 70580, 141160, 282320, 2071523, 4143046, 8286092, 10357615, 16572184, 20715230, 33144368, 41430460, 82860920, 165721840]

約数ペア:

[(1, 165721840), (2, 82860920), (4, 41430460), (5, 33144368), (8, 20715230), (10, 16572184), (16, 10357615), (20, 8286092), (40, 4143046), (80, 2071523), (587, 282320), (1174, 141160), (2348, 70580), (2935, 56464), (3529, 46960), (4696, 35290), (5870, 28232), (7058, 23480), (9392, 17645), (11740, 14116)]