12689120

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1117}}^1$

素因数の和:1203

約数の個数: 48

約数和(自身を含む): 30427488

約数和(自身を除く): 17738368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1117, 1136, 1420, 2234, 2272, 2840, 4468, 5585, 5680, 8936, 11170, 11360, 17872, 22340, 35744, 44680, 79307, 89360, 158614, 178720, 317228, 396535, 634456, 793070, 1268912, 1586140, 2537824, 3172280, 6344560, 12689120]

約数ペア:

[(1, 12689120), (2, 6344560), (4, 3172280), (5, 2537824), (8, 1586140), (10, 1268912), (16, 793070), (20, 634456), (32, 396535), (40, 317228), (71, 178720), (80, 158614), (142, 89360), (160, 79307), (284, 44680), (355, 35744), (568, 22340), (710, 17872), (1117, 11360), (1136, 11170), (1420, 8936), (2234, 5680), (2272, 5585), (2840, 4468)]