20118568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1237}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 40111200

約数和(自身を除く): 19992632

約数列:

[1, 2, 4, 8, 19, 38, 76, 107, 152, 214, 428, 856, 1237, 2033, 2474, 4066, 4948, 8132, 9896, 16264, 23503, 47006, 94012, 132359, 188024, 264718, 529436, 1058872, 2514821, 5029642, 10059284, 20118568]

約数ペア:

[(1, 20118568), (2, 10059284), (4, 5029642), (8, 2514821), (19, 1058872), (38, 529436), (76, 264718), (107, 188024), (152, 132359), (214, 94012), (428, 47006), (856, 23503), (1237, 16264), (2033, 9896), (2474, 8132), (4066, 4948)]