81477800

素因数分解:

$2^3\times 5^2\times {\mathrm{307}}^1\times {\mathrm{1327}}^1$

素因数の和:1650

約数の個数: 48

約数和(自身を含む): 190196160

約数和(自身を除く): 108718360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 307, 614, 1228, 1327, 1535, 2456, 2654, 3070, 5308, 6140, 6635, 7675, 10616, 12280, 13270, 15350, 26540, 30700, 33175, 53080, 61400, 66350, 132700, 265400, 407389, 814778, 1629556, 2036945, 3259112, 4073890, 8147780, 10184725, 16295560, 20369450, 40738900, 81477800]

約数ペア:

[(1, 81477800), (2, 40738900), (4, 20369450), (5, 16295560), (8, 10184725), (10, 8147780), (20, 4073890), (25, 3259112), (40, 2036945), (50, 1629556), (100, 814778), (200, 407389), (307, 265400), (614, 132700), (1228, 66350), (1327, 61400), (1535, 53080), (2456, 33175), (2654, 30700), (3070, 26540), (5308, 15350), (6140, 13270), (6635, 12280), (7675, 10616)]