26980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:99

約数の個数: 24

約数和(自身を含む): 60480

約数和(自身を除く): 33500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2698, 5396, 6745, 13490, 26980]

約数ペア:

[(1, 26980), (2, 13490), (4, 6745), (5, 5396), (10, 2698), (19, 1420), (20, 1349), (38, 710), (71, 380), (76, 355), (95, 284), (142, 190)]