12706280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10247}}^1$

素因数の和:10289

約数の個数: 32

約数和(自身を含む): 29514240

約数和(自身を除く): 16807960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10247, 20494, 40988, 51235, 81976, 102470, 204940, 317657, 409880, 635314, 1270628, 1588285, 2541256, 3176570, 6353140, 12706280]

約数ペア:

[(1, 12706280), (2, 6353140), (4, 3176570), (5, 2541256), (8, 1588285), (10, 1270628), (20, 635314), (31, 409880), (40, 317657), (62, 204940), (124, 102470), (155, 81976), (248, 51235), (310, 40988), (620, 20494), (1240, 10247)]