87439940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{1009}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 210403200

約数和(自身を除く): 122963260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 619, 1009, 1238, 2018, 2476, 3095, 4036, 4333, 5045, 6190, 7063, 8666, 10090, 12380, 14126, 17332, 20180, 21665, 28252, 35315, 43330, 70630, 86660, 141260, 624571, 1249142, 2498284, 3122855, 4371997, 6245710, 8743994, 12491420, 17487988, 21859985, 43719970, 87439940]

約数ペア:

[(1, 87439940), (2, 43719970), (4, 21859985), (5, 17487988), (7, 12491420), (10, 8743994), (14, 6245710), (20, 4371997), (28, 3122855), (35, 2498284), (70, 1249142), (140, 624571), (619, 141260), (1009, 86660), (1238, 70630), (2018, 43330), (2476, 35315), (3095, 28252), (4036, 21665), (4333, 20180), (5045, 17332), (6190, 14126), (7063, 12380), (8666, 10090)]