280479976

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{263609}}^1$

素因数の和:263641

約数の個数: 32

約数和(自身を含む): 632664000

約数和(自身を除く): 352184024

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 263609, 527218, 1054436, 1845263, 2108872, 3690526, 5008571, 7381052, 10017142, 14762104, 20034284, 35059997, 40068568, 70119994, 140239988, 280479976]

約数ペア:

[(1, 280479976), (2, 140239988), (4, 70119994), (7, 40068568), (8, 35059997), (14, 20034284), (19, 14762104), (28, 10017142), (38, 7381052), (56, 5008571), (76, 3690526), (133, 2108872), (152, 1845263), (266, 1054436), (532, 527218), (1064, 263609)]