12715940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 28459200

約数和(自身を除く): 15743260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 307, 380, 436, 545, 614, 1090, 1228, 1535, 2071, 2180, 3070, 4142, 5833, 6140, 8284, 10355, 11666, 20710, 23332, 29165, 33463, 41420, 58330, 66926, 116660, 133852, 167315, 334630, 635797, 669260, 1271594, 2543188, 3178985, 6357970, 12715940]

約数ペア:

[(1, 12715940), (2, 6357970), (4, 3178985), (5, 2543188), (10, 1271594), (19, 669260), (20, 635797), (38, 334630), (76, 167315), (95, 133852), (109, 116660), (190, 66926), (218, 58330), (307, 41420), (380, 33463), (436, 29165), (545, 23332), (614, 20710), (1090, 11666), (1228, 10355), (1535, 8284), (2071, 6140), (2180, 5833), (3070, 4142)]