78428020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5021}}^1$

素因数の和:5112

約数の個数: 48

約数和(自身を含む): 182238336

約数和(自身を除く): 103810316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 5021, 7810, 10042, 15620, 20084, 25105, 50210, 55231, 100420, 110462, 220924, 276155, 356491, 552310, 712982, 1104620, 1425964, 1782455, 3564910, 3921401, 7129820, 7842802, 15685604, 19607005, 39214010, 78428020]

約数ペア:

[(1, 78428020), (2, 39214010), (4, 19607005), (5, 15685604), (10, 7842802), (11, 7129820), (20, 3921401), (22, 3564910), (44, 1782455), (55, 1425964), (71, 1104620), (110, 712982), (142, 552310), (220, 356491), (284, 276155), (355, 220924), (710, 110462), (781, 100420), (1420, 55231), (1562, 50210), (3124, 25105), (3905, 20084), (5021, 15620), (7810, 10042)]