65540480

素因数分解:

$2^7\times 5^1\times {\mathrm{102407}}^1$

素因数の和:102426

約数の個数: 32

約数和(自身を含む): 156684240

約数和(自身を除く): 91143760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 102407, 204814, 409628, 512035, 819256, 1024070, 1638512, 2048140, 3277024, 4096280, 6554048, 8192560, 13108096, 16385120, 32770240, 65540480]

約数ペア:

[(1, 65540480), (2, 32770240), (4, 16385120), (5, 13108096), (8, 8192560), (10, 6554048), (16, 4096280), (20, 3277024), (32, 2048140), (40, 1638512), (64, 1024070), (80, 819256), (128, 512035), (160, 409628), (320, 204814), (640, 102407)]