1990064128

素因数分解:

$2^{11}\times {\mathrm{13}}^1\times {\mathrm{74747}}^1$

素因数の和:74782

約数の個数: 48

約数和(自身を含む): 4285302840

約数和(自身を除く): 2295238712

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1664, 2048, 3328, 6656, 13312, 26624, 74747, 149494, 298988, 597976, 971711, 1195952, 1943422, 2391904, 3886844, 4783808, 7773688, 9567616, 15547376, 19135232, 31094752, 38270464, 62189504, 76540928, 124379008, 153081856, 248758016, 497516032, 995032064, 1990064128]

約数ペア:

[(1, 1990064128), (2, 995032064), (4, 497516032), (8, 248758016), (13, 153081856), (16, 124379008), (26, 76540928), (32, 62189504), (52, 38270464), (64, 31094752), (104, 19135232), (128, 15547376), (208, 9567616), (256, 7773688), (416, 4783808), (512, 3886844), (832, 2391904), (1024, 1943422), (1664, 1195952), (2048, 971711), (3328, 597976), (6656, 298988), (13312, 149494), (26624, 74747)]