129721860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{720677}}^1$

素因数の和:720692

約数の個数: 36

約数和(自身を含む): 393490188

約数和(自身を除く): 263768328

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 720677, 1441354, 2162031, 2882708, 3603385, 4324062, 6486093, 7206770, 8648124, 10810155, 12972186, 14413540, 21620310, 25944372, 32430465, 43240620, 64860930, 129721860]

約数ペア:

[(1, 129721860), (2, 64860930), (3, 43240620), (4, 32430465), (5, 25944372), (6, 21620310), (9, 14413540), (10, 12972186), (12, 10810155), (15, 8648124), (18, 7206770), (20, 6486093), (30, 4324062), (36, 3603385), (45, 2882708), (60, 2162031), (90, 1441354), (180, 720677)]