18109805

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 25850880

約数和(自身を除く): 7741075

約数列:

[1, 5, 7, 35, 47, 101, 109, 235, 329, 505, 545, 707, 763, 1645, 3535, 3815, 4747, 5123, 11009, 23735, 25615, 33229, 35861, 55045, 77063, 166145, 179305, 385315, 517423, 2587115, 3621961, 18109805]

約数ペア:

[(1, 18109805), (5, 3621961), (7, 2587115), (35, 517423), (47, 385315), (101, 179305), (109, 166145), (235, 77063), (329, 55045), (505, 35861), (545, 33229), (707, 25615), (763, 23735), (1645, 11009), (3535, 5123), (3815, 4747)]