78239870

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{419}}^1$

素因数の和:760

約数の個数: 32

約数和(自身を含む): 143700480

約数和(自身を除く): 65460610

約数列:

[1, 2, 5, 10, 71, 142, 263, 355, 419, 526, 710, 838, 1315, 2095, 2630, 4190, 18673, 29749, 37346, 59498, 93365, 110197, 148745, 186730, 220394, 297490, 550985, 1101970, 7823987, 15647974, 39119935, 78239870]

約数ペア:

[(1, 78239870), (2, 39119935), (5, 15647974), (10, 7823987), (71, 1101970), (142, 550985), (263, 297490), (355, 220394), (419, 186730), (526, 148745), (710, 110197), (838, 93365), (1315, 59498), (2095, 37346), (2630, 29749), (4190, 18673)]