12429440

素因数分解:

$2^7\times 5^1\times {\mathrm{19421}}^1$

素因数の和:19440

約数の個数: 32

約数和(自身を含む): 29715660

約数和(自身を除く): 17286220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19421, 38842, 77684, 97105, 155368, 194210, 310736, 388420, 621472, 776840, 1242944, 1553680, 2485888, 3107360, 6214720, 12429440]

約数ペア:

[(1, 12429440), (2, 6214720), (4, 3107360), (5, 2485888), (8, 1553680), (10, 1242944), (16, 776840), (20, 621472), (32, 388420), (40, 310736), (64, 194210), (80, 155368), (128, 97105), (160, 77684), (320, 38842), (640, 19421)]