78461320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{280219}}^1$

素因数の和:280237

約数の個数: 32

約数和(自身を含む): 201758400

約数和(自身を除く): 123297080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 280219, 560438, 1120876, 1401095, 1961533, 2241752, 2802190, 3923066, 5604380, 7846132, 9807665, 11208760, 15692264, 19615330, 39230660, 78461320]

約数ペア:

[(1, 78461320), (2, 39230660), (4, 19615330), (5, 15692264), (7, 11208760), (8, 9807665), (10, 7846132), (14, 5604380), (20, 3923066), (28, 2802190), (35, 2241752), (40, 1961533), (56, 1401095), (70, 1120876), (140, 560438), (280, 280219)]