78009940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{479}}^2$

素因数の和:984

約数の個数: 36

約数和(自身を含む): 173820276

約数和(自身を除く): 95810336

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 479, 958, 1916, 2395, 4790, 8143, 9580, 16286, 32572, 40715, 81430, 162860, 229441, 458882, 917764, 1147205, 2294410, 3900497, 4588820, 7800994, 15601988, 19502485, 39004970, 78009940]

約数ペア:

[(1, 78009940), (2, 39004970), (4, 19502485), (5, 15601988), (10, 7800994), (17, 4588820), (20, 3900497), (34, 2294410), (68, 1147205), (85, 917764), (170, 458882), (340, 229441), (479, 162860), (958, 81430), (1916, 40715), (2395, 32572), (4790, 16286), (8143, 9580)]