18587890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^3\times {\mathrm{271}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 35447040

約数和(自身を除く): 16859150

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 271, 361, 542, 722, 1355, 1805, 2710, 3610, 5149, 6859, 10298, 13718, 25745, 34295, 51490, 68590, 97831, 195662, 489155, 978310, 1858789, 3717578, 9293945, 18587890]

約数ペア:

[(1, 18587890), (2, 9293945), (5, 3717578), (10, 1858789), (19, 978310), (38, 489155), (95, 195662), (190, 97831), (271, 68590), (361, 51490), (542, 34295), (722, 25745), (1355, 13718), (1805, 10298), (2710, 6859), (3610, 5149)]