247765280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{221219}}^1$

素因数の和:221241

約数の個数: 48

約数和(自身を含む): 668969280

約数和(自身を除く): 421204000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 221219, 442438, 884876, 1106095, 1548533, 1769752, 2212190, 3097066, 3539504, 4424380, 6194132, 7079008, 7742665, 8848760, 12388264, 15485330, 17697520, 24776528, 30970660, 35395040, 49553056, 61941320, 123882640, 247765280]

約数ペア:

[(1, 247765280), (2, 123882640), (4, 61941320), (5, 49553056), (7, 35395040), (8, 30970660), (10, 24776528), (14, 17697520), (16, 15485330), (20, 12388264), (28, 8848760), (32, 7742665), (35, 7079008), (40, 6194132), (56, 4424380), (70, 3539504), (80, 3097066), (112, 2212190), (140, 1769752), (160, 1548533), (224, 1106095), (280, 884876), (560, 442438), (1120, 221219)]