19402480

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{857}}^1$

素因数の和:1153

約数の個数: 40

約数和(自身を含む): 45322992

約数和(自身を除く): 25920512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 857, 1132, 1415, 1714, 2264, 2830, 3428, 4285, 4528, 5660, 6856, 8570, 11320, 13712, 17140, 22640, 34280, 68560, 242531, 485062, 970124, 1212655, 1940248, 2425310, 3880496, 4850620, 9701240, 19402480]

約数ペア:

[(1, 19402480), (2, 9701240), (4, 4850620), (5, 3880496), (8, 2425310), (10, 1940248), (16, 1212655), (20, 970124), (40, 485062), (80, 242531), (283, 68560), (566, 34280), (857, 22640), (1132, 17140), (1415, 13712), (1714, 11320), (2264, 8570), (2830, 6856), (3428, 5660), (4285, 4528)]