77894980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 168376320

約数和(自身を除く): 90481340

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 173, 188, 235, 346, 470, 479, 692, 865, 940, 958, 1730, 1916, 2395, 3460, 4790, 8131, 9580, 16262, 22513, 32524, 40655, 45026, 81310, 82867, 90052, 112565, 162620, 165734, 225130, 331468, 414335, 450260, 828670, 1657340, 3894749, 7789498, 15578996, 19473745, 38947490, 77894980]

約数ペア:

[(1, 77894980), (2, 38947490), (4, 19473745), (5, 15578996), (10, 7789498), (20, 3894749), (47, 1657340), (94, 828670), (173, 450260), (188, 414335), (235, 331468), (346, 225130), (470, 165734), (479, 162620), (692, 112565), (865, 90052), (940, 82867), (958, 81310), (1730, 45026), (1916, 40655), (2395, 32524), (3460, 22513), (4790, 16262), (8131, 9580)]