1642240

素因数分解:

$2^8\times 5^1\times {\mathrm{1283}}^1$

素因数の和:1304

約数の個数: 36

約数和(自身を含む): 3936744

約数和(自身を除く): 2294504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1283, 2566, 5132, 6415, 10264, 12830, 20528, 25660, 41056, 51320, 82112, 102640, 164224, 205280, 328448, 410560, 821120, 1642240]

約数ペア:

[(1, 1642240), (2, 821120), (4, 410560), (5, 328448), (8, 205280), (10, 164224), (16, 102640), (20, 82112), (32, 51320), (40, 41056), (64, 25660), (80, 20528), (128, 12830), (160, 10264), (256, 6415), (320, 5132), (640, 2566), (1280, 1283)]