19562660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1123}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 44942016

約数和(自身を除く): 25379356

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1123, 1340, 1742, 2246, 3484, 4355, 4492, 5615, 8710, 11230, 14599, 17420, 22460, 29198, 58396, 72995, 75241, 145990, 150482, 291980, 300964, 376205, 752410, 978133, 1504820, 1956266, 3912532, 4890665, 9781330, 19562660]

約数ペア:

[(1, 19562660), (2, 9781330), (4, 4890665), (5, 3912532), (10, 1956266), (13, 1504820), (20, 978133), (26, 752410), (52, 376205), (65, 300964), (67, 291980), (130, 150482), (134, 145990), (260, 75241), (268, 72995), (335, 58396), (670, 29198), (871, 22460), (1123, 17420), (1340, 14599), (1742, 11230), (2246, 8710), (3484, 5615), (4355, 4492)]