19999745552

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{92107}}^1$

素因数の和:92487

約数の個数: 40

約数和(自身を含む): 39814972512

約数和(自身を除く): 19815226960

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 331, 656, 662, 1324, 2648, 5296, 13571, 27142, 54284, 92107, 108568, 184214, 217136, 368428, 736856, 1473712, 3776387, 7552774, 15105548, 30211096, 30487417, 60422192, 60974834, 121949668, 243899336, 487798672, 1249984097, 2499968194, 4999936388, 9999872776, 19999745552]

約数ペア:

[(1, 19999745552), (2, 9999872776), (4, 4999936388), (8, 2499968194), (16, 1249984097), (41, 487798672), (82, 243899336), (164, 121949668), (328, 60974834), (331, 60422192), (656, 30487417), (662, 30211096), (1324, 15105548), (2648, 7552774), (5296, 3776387), (13571, 1473712), (27142, 736856), (54284, 368428), (92107, 217136), (108568, 184214)]