78424040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32141}}^1$

素因数の和:32213

約数の個数: 32

約数和(自身を含む): 179352360

約数和(自身を除く): 100928320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 32141, 64282, 128564, 160705, 257128, 321410, 642820, 1285640, 1960601, 3921202, 7842404, 9803005, 15684808, 19606010, 39212020, 78424040]

約数ペア:

[(1, 78424040), (2, 39212020), (4, 19606010), (5, 15684808), (8, 9803005), (10, 7842404), (20, 3921202), (40, 1960601), (61, 1285640), (122, 642820), (244, 321410), (305, 257128), (488, 160705), (610, 128564), (1220, 64282), (2440, 32141)]