156909440

素因数分解:

$2^7\times 5^1\times {\mathrm{245171}}^1$

素因数の和:245190

約数の個数: 32

約数和(自身を含む): 375113160

約数和(自身を除く): 218203720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 245171, 490342, 980684, 1225855, 1961368, 2451710, 3922736, 4903420, 7845472, 9806840, 15690944, 19613680, 31381888, 39227360, 78454720, 156909440]

約数ペア:

[(1, 156909440), (2, 78454720), (4, 39227360), (5, 31381888), (8, 19613680), (10, 15690944), (16, 9806840), (20, 7845472), (32, 4903420), (40, 3922736), (64, 2451710), (80, 1961368), (128, 1225855), (160, 980684), (320, 490342), (640, 245171)]