7839020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 20205360

約数和(自身を除く): 12366340

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 421, 490, 532, 665, 842, 931, 980, 1330, 1684, 1862, 2105, 2660, 2947, 3724, 4210, 4655, 5894, 7999, 8420, 9310, 11788, 14735, 15998, 18620, 20629, 29470, 31996, 39995, 41258, 55993, 58940, 79990, 82516, 103145, 111986, 159980, 206290, 223972, 279965, 391951, 412580, 559930, 783902, 1119860, 1567804, 1959755, 3919510, 7839020]

約数ペア:

[(1, 7839020), (2, 3919510), (4, 1959755), (5, 1567804), (7, 1119860), (10, 783902), (14, 559930), (19, 412580), (20, 391951), (28, 279965), (35, 223972), (38, 206290), (49, 159980), (70, 111986), (76, 103145), (95, 82516), (98, 79990), (133, 58940), (140, 55993), (190, 41258), (196, 39995), (245, 31996), (266, 29470), (380, 20629), (421, 18620), (490, 15998), (532, 14735), (665, 11788), (842, 9310), (931, 8420), (980, 7999), (1330, 5894), (1684, 4655), (1862, 4210), (2105, 3724), (2660, 2947)]