18923620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2621}}^1$

素因数の和:2668

約数の個数: 36

約数和(自身を含む): 41957244

約数和(自身を除く): 23033624

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2621, 3610, 5242, 7220, 10484, 13105, 26210, 49799, 52420, 99598, 199196, 248995, 497990, 946181, 995980, 1892362, 3784724, 4730905, 9461810, 18923620]

約数ペア:

[(1, 18923620), (2, 9461810), (4, 4730905), (5, 3784724), (10, 1892362), (19, 995980), (20, 946181), (38, 497990), (76, 248995), (95, 199196), (190, 99598), (361, 52420), (380, 49799), (722, 26210), (1444, 13105), (1805, 10484), (2621, 7220), (3610, 5242)]