12795080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{173}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 29644380

約数和(自身を除く): 16849300

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 173, 215, 344, 346, 430, 692, 860, 865, 1384, 1720, 1730, 1849, 3460, 3698, 6920, 7396, 7439, 9245, 14792, 14878, 18490, 29756, 36980, 37195, 59512, 73960, 74390, 148780, 297560, 319877, 639754, 1279508, 1599385, 2559016, 3198770, 6397540, 12795080]

約数ペア:

[(1, 12795080), (2, 6397540), (4, 3198770), (5, 2559016), (8, 1599385), (10, 1279508), (20, 639754), (40, 319877), (43, 297560), (86, 148780), (172, 74390), (173, 73960), (215, 59512), (344, 37195), (346, 36980), (430, 29756), (692, 18490), (860, 14878), (865, 14792), (1384, 9245), (1720, 7439), (1730, 7396), (1849, 6920), (3460, 3698)]