201878420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{27961}}^1$

素因数の和:28008

約数の個数: 36

約数和(自身を含む): 447447924

約数和(自身を除く): 245569504

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 27961, 55922, 111844, 139805, 279610, 531259, 559220, 1062518, 2125036, 2656295, 5312590, 10093921, 10625180, 20187842, 40375684, 50469605, 100939210, 201878420]

約数ペア:

[(1, 201878420), (2, 100939210), (4, 50469605), (5, 40375684), (10, 20187842), (19, 10625180), (20, 10093921), (38, 5312590), (76, 2656295), (95, 2125036), (190, 1062518), (361, 559220), (380, 531259), (722, 279610), (1444, 139805), (1805, 111844), (3610, 55922), (7220, 27961)]