40589440

素因数分解:

$2^7\times 5^1\times {\mathrm{63421}}^1$

素因数の和:63440

約数の個数: 32

約数和(自身を含む): 97035660

約数和(自身を除く): 56446220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 63421, 126842, 253684, 317105, 507368, 634210, 1014736, 1268420, 2029472, 2536840, 4058944, 5073680, 8117888, 10147360, 20294720, 40589440]

約数ペア:

[(1, 40589440), (2, 20294720), (4, 10147360), (5, 8117888), (8, 5073680), (10, 4058944), (16, 2536840), (20, 2029472), (32, 1268420), (40, 1014736), (64, 634210), (80, 507368), (128, 317105), (160, 253684), (320, 126842), (640, 63421)]