128421456

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{140813}}^1$

素因数の和:140843

約数の個数: 40

約数和(自身を含む): 349218720

約数和(自身を除く): 220797264

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912, 140813, 281626, 422439, 563252, 844878, 1126504, 1689756, 2253008, 2675447, 3379512, 5350894, 6759024, 8026341, 10701788, 16052682, 21403576, 32105364, 42807152, 64210728, 128421456]

約数ペア:

[(1, 128421456), (2, 64210728), (3, 42807152), (4, 32105364), (6, 21403576), (8, 16052682), (12, 10701788), (16, 8026341), (19, 6759024), (24, 5350894), (38, 3379512), (48, 2675447), (57, 2253008), (76, 1689756), (114, 1126504), (152, 844878), (228, 563252), (304, 422439), (456, 281626), (912, 140813)]