123020720

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2399}}^1$

素因数の和:3053

約数の個数: 40

約数和(自身を含む): 286588800

約数和(自身を除く): 163568080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1282, 2399, 2564, 3205, 4798, 5128, 6410, 9596, 10256, 11995, 12820, 19192, 23990, 25640, 38384, 47980, 51280, 95960, 191920, 1537759, 3075518, 6151036, 7688795, 12302072, 15377590, 24604144, 30755180, 61510360, 123020720]

約数ペア:

[(1, 123020720), (2, 61510360), (4, 30755180), (5, 24604144), (8, 15377590), (10, 12302072), (16, 7688795), (20, 6151036), (40, 3075518), (80, 1537759), (641, 191920), (1282, 95960), (2399, 51280), (2564, 47980), (3205, 38384), (4798, 25640), (5128, 23990), (6410, 19192), (9596, 12820), (10256, 11995)]