27690980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{72871}}^1$

素因数の和:72899

約数の個数: 24

約数和(自身を含む): 61212480

約数和(自身を除く): 33521500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 72871, 145742, 291484, 364355, 728710, 1384549, 1457420, 2769098, 5538196, 6922745, 13845490, 27690980]

約数ペア:

[(1, 27690980), (2, 13845490), (4, 6922745), (5, 5538196), (10, 2769098), (19, 1457420), (20, 1384549), (38, 728710), (76, 364355), (95, 291484), (190, 145742), (380, 72871)]