28695890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{7949}}^1$

素因数の和:7994

約数の個数: 24

約数和(自身を含む): 54521100

約数和(自身を除く): 25825210

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 7949, 15898, 39745, 79490, 151031, 302062, 755155, 1510310, 2869589, 5739178, 14347945, 28695890]

約数ペア:

[(1, 28695890), (2, 14347945), (5, 5739178), (10, 2869589), (19, 1510310), (38, 755155), (95, 302062), (190, 151031), (361, 79490), (722, 39745), (1805, 15898), (3610, 7949)]