278560880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6229}}^1$

素因数の和:6298

約数の個数: 80

約数和(自身を含む): 713808480

約数和(自身を除く): 435247600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2795, 3440, 4472, 5590, 6229, 8944, 11180, 12458, 22360, 24916, 31145, 44720, 49832, 62290, 80977, 99664, 124580, 161954, 249160, 267847, 323908, 404885, 498320, 535694, 647816, 809770, 1071388, 1295632, 1339235, 1619540, 2142776, 2678470, 3239080, 3482011, 4285552, 5356940, 6478160, 6964022, 10713880, 13928044, 17410055, 21427760, 27856088, 34820110, 55712176, 69640220, 139280440, 278560880]

約数ペア:

[(1, 278560880), (2, 139280440), (4, 69640220), (5, 55712176), (8, 34820110), (10, 27856088), (13, 21427760), (16, 17410055), (20, 13928044), (26, 10713880), (40, 6964022), (43, 6478160), (52, 5356940), (65, 4285552), (80, 3482011), (86, 3239080), (104, 2678470), (130, 2142776), (172, 1619540), (208, 1339235), (215, 1295632), (260, 1071388), (344, 809770), (430, 647816), (520, 535694), (559, 498320), (688, 404885), (860, 323908), (1040, 267847), (1118, 249160), (1720, 161954), (2236, 124580), (2795, 99664), (3440, 80977), (4472, 62290), (5590, 49832), (6229, 44720), (8944, 31145), (11180, 24916), (12458, 22360)]