8218880

素因数分解:

$2^8\times 5^1\times {\mathrm{6421}}^1$

素因数の和:6442

約数の個数: 36

約数和(自身を含む): 19689852

約数和(自身を除く): 11470972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 6421, 12842, 25684, 32105, 51368, 64210, 102736, 128420, 205472, 256840, 410944, 513680, 821888, 1027360, 1643776, 2054720, 4109440, 8218880]

約数ペア:

[(1, 8218880), (2, 4109440), (4, 2054720), (5, 1643776), (8, 1027360), (10, 821888), (16, 513680), (20, 410944), (32, 256840), (40, 205472), (64, 128420), (80, 102736), (128, 64210), (160, 51368), (256, 32105), (320, 25684), (640, 12842), (1280, 6421)]