78428665

素因数分解:

$5^1\times 7^4\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 40

約数和(自身を含む): 112936320

約数和(自身を除く): 34507655

約数列:

[1, 5, 7, 35, 47, 49, 139, 235, 245, 329, 343, 695, 973, 1645, 1715, 2303, 2401, 4865, 6533, 6811, 11515, 12005, 16121, 32665, 34055, 45731, 47677, 80605, 112847, 228655, 238385, 320117, 333739, 564235, 1600585, 1668695, 2240819, 11204095, 15685733, 78428665]

約数ペア:

[(1, 78428665), (5, 15685733), (7, 11204095), (35, 2240819), (47, 1668695), (49, 1600585), (139, 564235), (235, 333739), (245, 320117), (329, 238385), (343, 228655), (695, 112847), (973, 80605), (1645, 47677), (1715, 45731), (2303, 34055), (2401, 32665), (4865, 16121), (6533, 12005), (6811, 11515)]