87439660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{56779}}^1$

素因数の和:56806

約数の個数: 48

約数和(自身を含む): 228936960

約数和(自身を除く): 141497300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 56779, 113558, 227116, 283895, 397453, 567790, 624569, 794906, 1135580, 1249138, 1589812, 1987265, 2498276, 3122845, 3974530, 4371983, 6245690, 7949060, 8743966, 12491380, 17487932, 21859915, 43719830, 87439660]

約数ペア:

[(1, 87439660), (2, 43719830), (4, 21859915), (5, 17487932), (7, 12491380), (10, 8743966), (11, 7949060), (14, 6245690), (20, 4371983), (22, 3974530), (28, 3122845), (35, 2498276), (44, 1987265), (55, 1589812), (70, 1249138), (77, 1135580), (110, 794906), (140, 624569), (154, 567790), (220, 397453), (308, 283895), (385, 227116), (770, 113558), (1540, 56779)]