67820920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{31991}}^1$

素因数の和:32055

約数の個数: 32

約数和(自身を含む): 155481120

約数和(自身を除く): 87660200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 31991, 63982, 127964, 159955, 255928, 319910, 639820, 1279640, 1695523, 3391046, 6782092, 8477615, 13564184, 16955230, 33910460, 67820920]

約数ペア:

[(1, 67820920), (2, 33910460), (4, 16955230), (5, 13564184), (8, 8477615), (10, 6782092), (20, 3391046), (40, 1695523), (53, 1279640), (106, 639820), (212, 319910), (265, 255928), (424, 159955), (530, 127964), (1060, 63982), (2120, 31991)]