660804920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{246569}}^1$

素因数の和:246647

約数の個数: 32

約数和(自身を含む): 1509008400

約数和(自身を除く): 848203480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 246569, 493138, 986276, 1232845, 1972552, 2465690, 4931380, 9862760, 16520123, 33040246, 66080492, 82600615, 132160984, 165201230, 330402460, 660804920]

約数ペア:

[(1, 660804920), (2, 330402460), (4, 165201230), (5, 132160984), (8, 82600615), (10, 66080492), (20, 33040246), (40, 16520123), (67, 9862760), (134, 4931380), (268, 2465690), (335, 1972552), (536, 1232845), (670, 986276), (1340, 493138), (2680, 246569)]