12538840

素因数分解:

$2^3\times 5^1\times {\mathrm{313471}}^1$

素因数の和:313482

約数の個数: 16

約数和(自身を含む): 28212480

約数和(自身を除く): 15673640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313471, 626942, 1253884, 1567355, 2507768, 3134710, 6269420, 12538840]

約数ペア:

[(1, 12538840), (2, 6269420), (4, 3134710), (5, 2507768), (8, 1567355), (10, 1253884), (20, 626942), (40, 313471)]