28000378

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 49996800

約数和(自身を除く): 21996422

約数列:

[1, 2, 7, 14, 31, 62, 149, 217, 298, 433, 434, 866, 1043, 2086, 3031, 4619, 6062, 9238, 13423, 26846, 32333, 64517, 64666, 93961, 129034, 187922, 451619, 903238, 2000027, 4000054, 14000189, 28000378]

約数ペア:

[(1, 28000378), (2, 14000189), (7, 4000054), (14, 2000027), (31, 903238), (62, 451619), (149, 187922), (217, 129034), (298, 93961), (433, 64666), (434, 64517), (866, 32333), (1043, 26846), (2086, 13423), (3031, 9238), (4619, 6062)]