1855540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{257}}^1$

素因数の和:304

約数の個数: 36

約数和(自身を含む): 4128516

約数和(自身を除く): 2272976

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 257, 361, 380, 514, 722, 1028, 1285, 1444, 1805, 2570, 3610, 4883, 5140, 7220, 9766, 19532, 24415, 48830, 92777, 97660, 185554, 371108, 463885, 927770, 1855540]

約数ペア:

[(1, 1855540), (2, 927770), (4, 463885), (5, 371108), (10, 185554), (19, 97660), (20, 92777), (38, 48830), (76, 24415), (95, 19532), (190, 9766), (257, 7220), (361, 5140), (380, 4883), (514, 3610), (722, 2570), (1028, 1805), (1285, 1444)]