19629440

素因数分解:

$2^7\times 5^1\times {\mathrm{30671}}^1$

素因数の和:30690

約数の個数: 32

約数和(自身を含む): 46928160

約数和(自身を除く): 27298720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30671, 61342, 122684, 153355, 245368, 306710, 490736, 613420, 981472, 1226840, 1962944, 2453680, 3925888, 4907360, 9814720, 19629440]

約数ペア:

[(1, 19629440), (2, 9814720), (4, 4907360), (5, 3925888), (8, 2453680), (10, 1962944), (16, 1226840), (20, 981472), (32, 613420), (40, 490736), (64, 306710), (80, 245368), (128, 153355), (160, 122684), (320, 61342), (640, 30671)]