79878780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{443771}}^1$

素因数の和:443786

約数の個数: 36

約数和(自身を含む): 242299512

約数和(自身を除く): 162420732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 443771, 887542, 1331313, 1775084, 2218855, 2662626, 3993939, 4437710, 5325252, 6656565, 7987878, 8875420, 13313130, 15975756, 19969695, 26626260, 39939390, 79878780]

約数ペア:

[(1, 79878780), (2, 39939390), (3, 26626260), (4, 19969695), (5, 15975756), (6, 13313130), (9, 8875420), (10, 7987878), (12, 6656565), (15, 5325252), (18, 4437710), (20, 3993939), (30, 2662626), (36, 2218855), (45, 1775084), (60, 1331313), (90, 887542), (180, 443771)]