71290980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{396061}}^1$

素因数の和:396076

約数の個数: 36

約数和(自身を含む): 216249852

約数和(自身を除く): 144958872

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 396061, 792122, 1188183, 1584244, 1980305, 2376366, 3564549, 3960610, 4752732, 5940915, 7129098, 7921220, 11881830, 14258196, 17822745, 23763660, 35645490, 71290980]

約数ペア:

[(1, 71290980), (2, 35645490), (3, 23763660), (4, 17822745), (5, 14258196), (6, 11881830), (9, 7921220), (10, 7129098), (12, 5940915), (15, 4752732), (18, 3960610), (20, 3564549), (30, 2376366), (36, 1980305), (45, 1584244), (60, 1188183), (90, 792122), (180, 396061)]