72663920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{129757}}^1$

素因数の和:129777

約数の個数: 40

約数和(自身を含む): 193079904

約数和(自身を除く): 120415984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 129757, 259514, 519028, 648785, 908299, 1038056, 1297570, 1816598, 2076112, 2595140, 3633196, 4541495, 5190280, 7266392, 9082990, 10380560, 14532784, 18165980, 36331960, 72663920]

約数ペア:

[(1, 72663920), (2, 36331960), (4, 18165980), (5, 14532784), (7, 10380560), (8, 9082990), (10, 7266392), (14, 5190280), (16, 4541495), (20, 3633196), (28, 2595140), (35, 2076112), (40, 1816598), (56, 1297570), (70, 1038056), (80, 908299), (112, 648785), (140, 519028), (280, 259514), (560, 129757)]