42142640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16993}}^1$

素因数の和:17037

約数の個数: 40

約数和(自身を含む): 101148288

約数和(自身を除く): 59005648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 16993, 33986, 67972, 84965, 135944, 169930, 271888, 339860, 526783, 679720, 1053566, 1359440, 2107132, 2633915, 4214264, 5267830, 8428528, 10535660, 21071320, 42142640]

約数ペア:

[(1, 42142640), (2, 21071320), (4, 10535660), (5, 8428528), (8, 5267830), (10, 4214264), (16, 2633915), (20, 2107132), (31, 1359440), (40, 1053566), (62, 679720), (80, 526783), (124, 339860), (155, 271888), (248, 169930), (310, 135944), (496, 84965), (620, 67972), (1240, 33986), (2480, 16993)]