128801680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{230003}}^1$

素因数の和:230023

約数の個数: 40

約数和(自身を含む): 342245952

約数和(自身を除く): 213444272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 230003, 460006, 920012, 1150015, 1610021, 1840024, 2300030, 3220042, 3680048, 4600060, 6440084, 8050105, 9200120, 12880168, 16100210, 18400240, 25760336, 32200420, 64400840, 128801680]

約数ペア:

[(1, 128801680), (2, 64400840), (4, 32200420), (5, 25760336), (7, 18400240), (8, 16100210), (10, 12880168), (14, 9200120), (16, 8050105), (20, 6440084), (28, 4600060), (35, 3680048), (40, 3220042), (56, 2300030), (70, 1840024), (80, 1610021), (112, 1150015), (140, 920012), (280, 460006), (560, 230003)]