2800697080

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{439}}^1\times {\mathrm{457}}^1$

素因数の和:1256

約数の個数: 64

約数和(自身を含む): 6347880000

約数和(自身を除く): 3547182920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 439, 457, 698, 878, 914, 1396, 1745, 1756, 1828, 2195, 2285, 2792, 3490, 3512, 3656, 4390, 4570, 6980, 8780, 9140, 13960, 17560, 18280, 153211, 159493, 200623, 306422, 318986, 401246, 612844, 637972, 766055, 797465, 802492, 1003115, 1225688, 1275944, 1532110, 1594930, 1604984, 2006230, 3064220, 3189860, 4012460, 6128440, 6379720, 8024920, 70017427, 140034854, 280069708, 350087135, 560139416, 700174270, 1400348540, 2800697080]

約数ペア:

[(1, 2800697080), (2, 1400348540), (4, 700174270), (5, 560139416), (8, 350087135), (10, 280069708), (20, 140034854), (40, 70017427), (349, 8024920), (439, 6379720), (457, 6128440), (698, 4012460), (878, 3189860), (914, 3064220), (1396, 2006230), (1745, 1604984), (1756, 1594930), (1828, 1532110), (2195, 1275944), (2285, 1225688), (2792, 1003115), (3490, 802492), (3512, 797465), (3656, 766055), (4390, 637972), (4570, 612844), (6980, 401246), (8780, 318986), (9140, 306422), (13960, 200623), (17560, 159493), (18280, 153211)]