28845280

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1297}}^1$

素因数の和:1451

約数の個数: 48

約数和(自身を含む): 68690160

約数和(自身を除く): 39844880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1297, 1390, 2224, 2594, 2780, 4448, 5188, 5560, 6485, 10376, 11120, 12970, 20752, 22240, 25940, 41504, 51880, 103760, 180283, 207520, 360566, 721132, 901415, 1442264, 1802830, 2884528, 3605660, 5769056, 7211320, 14422640, 28845280]

約数ペア:

[(1, 28845280), (2, 14422640), (4, 7211320), (5, 5769056), (8, 3605660), (10, 2884528), (16, 1802830), (20, 1442264), (32, 901415), (40, 721132), (80, 360566), (139, 207520), (160, 180283), (278, 103760), (556, 51880), (695, 41504), (1112, 25940), (1297, 22240), (1390, 20752), (2224, 12970), (2594, 11120), (2780, 10376), (4448, 6485), (5188, 5560)]