78234140

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{47129}}^1$

素因数の和:47221

約数の個数: 24

約数和(自身を含む): 166274640

約数和(自身を除く): 88040500

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 47129, 94258, 188516, 235645, 471290, 942580, 3911707, 7823414, 15646828, 19558535, 39117070, 78234140]

約数ペア:

[(1, 78234140), (2, 39117070), (4, 19558535), (5, 15646828), (10, 7823414), (20, 3911707), (83, 942580), (166, 471290), (332, 235645), (415, 188516), (830, 94258), (1660, 47129)]