7942640

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{983}}^1$

素因数の和:1097

約数の個数: 40

約数和(自身を含む): 18668448

約数和(自身を除く): 10725808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 983, 1010, 1616, 1966, 2020, 3932, 4040, 4915, 7864, 8080, 9830, 15728, 19660, 39320, 78640, 99283, 198566, 397132, 496415, 794264, 992830, 1588528, 1985660, 3971320, 7942640]

約数ペア:

[(1, 7942640), (2, 3971320), (4, 1985660), (5, 1588528), (8, 992830), (10, 794264), (16, 496415), (20, 397132), (40, 198566), (80, 99283), (101, 78640), (202, 39320), (404, 19660), (505, 15728), (808, 9830), (983, 8080), (1010, 7864), (1616, 4915), (1966, 4040), (2020, 3932)]