129407440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22783}}^1$

素因数の和:22867

約数の個数: 40

約数和(自身を含む): 305123328

約数和(自身を除く): 175715888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 22783, 45566, 91132, 113915, 182264, 227830, 364528, 455660, 911320, 1617593, 1822640, 3235186, 6470372, 8087965, 12940744, 16175930, 25881488, 32351860, 64703720, 129407440]

約数ペア:

[(1, 129407440), (2, 64703720), (4, 32351860), (5, 25881488), (8, 16175930), (10, 12940744), (16, 8087965), (20, 6470372), (40, 3235186), (71, 1822640), (80, 1617593), (142, 911320), (284, 455660), (355, 364528), (568, 227830), (710, 182264), (1136, 113915), (1420, 91132), (2840, 45566), (5680, 22783)]