21869440

素因数分解:

$2^7\times 5^1\times {\mathrm{34171}}^1$

素因数の和:34190

約数の個数: 32

約数和(自身を含む): 52283160

約数和(自身を除く): 30413720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 34171, 68342, 136684, 170855, 273368, 341710, 546736, 683420, 1093472, 1366840, 2186944, 2733680, 4373888, 5467360, 10934720, 21869440]

約数ペア:

[(1, 21869440), (2, 10934720), (4, 5467360), (5, 4373888), (8, 2733680), (10, 2186944), (16, 1366840), (20, 1093472), (32, 683420), (40, 546736), (64, 341710), (80, 273368), (128, 170855), (160, 136684), (320, 68342), (640, 34171)]