78143428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{443}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 158135040

約数和(自身を除く): 79991612

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 211, 418, 422, 443, 836, 844, 886, 1772, 2321, 4009, 4642, 4873, 8018, 8417, 9284, 9746, 16036, 16834, 19492, 33668, 44099, 88198, 92587, 93473, 176396, 185174, 186946, 370348, 373892, 1028203, 1775987, 2056406, 3551974, 4112812, 7103948, 19535857, 39071714, 78143428]

約数ペア:

[(1, 78143428), (2, 39071714), (4, 19535857), (11, 7103948), (19, 4112812), (22, 3551974), (38, 2056406), (44, 1775987), (76, 1028203), (209, 373892), (211, 370348), (418, 186946), (422, 185174), (443, 176396), (836, 93473), (844, 92587), (886, 88198), (1772, 44099), (2321, 33668), (4009, 19492), (4642, 16834), (4873, 16036), (8018, 9746), (8417, 9284)]