20055040

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3917}}^1$

素因数の和:3942

約数の個数: 44

約数和(自身を含む): 48120876

約数和(自身を除く): 28065836

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3917, 5120, 7834, 15668, 19585, 31336, 39170, 62672, 78340, 125344, 156680, 250688, 313360, 501376, 626720, 1002752, 1253440, 2005504, 2506880, 4011008, 5013760, 10027520, 20055040]

約数ペア:

[(1, 20055040), (2, 10027520), (4, 5013760), (5, 4011008), (8, 2506880), (10, 2005504), (16, 1253440), (20, 1002752), (32, 626720), (40, 501376), (64, 313360), (80, 250688), (128, 156680), (160, 125344), (256, 78340), (320, 62672), (512, 39170), (640, 31336), (1024, 19585), (1280, 15668), (2560, 7834), (3917, 5120)]