78924020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563743}}^1$

素因数の和:563759

約数の個数: 24

約数和(自身を含む): 189417984

約数和(自身を除く): 110493964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563743, 1127486, 2254972, 2818715, 3946201, 5637430, 7892402, 11274860, 15784804, 19731005, 39462010, 78924020]

約数ペア:

[(1, 78924020), (2, 39462010), (4, 19731005), (5, 15784804), (7, 11274860), (10, 7892402), (14, 5637430), (20, 3946201), (28, 2818715), (35, 2254972), (70, 1127486), (140, 563743)]