19654048

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 40098240

約数和(自身を除く): 20444192

約数列:

[1, 2, 4, 8, 16, 32, 67, 89, 103, 134, 178, 206, 268, 356, 412, 536, 712, 824, 1072, 1424, 1648, 2144, 2848, 3296, 5963, 6901, 9167, 11926, 13802, 18334, 23852, 27604, 36668, 47704, 55208, 73336, 95408, 110416, 146672, 190816, 220832, 293344, 614189, 1228378, 2456756, 4913512, 9827024, 19654048]

約数ペア:

[(1, 19654048), (2, 9827024), (4, 4913512), (8, 2456756), (16, 1228378), (32, 614189), (67, 293344), (89, 220832), (103, 190816), (134, 146672), (178, 110416), (206, 95408), (268, 73336), (356, 55208), (412, 47704), (536, 36668), (712, 27604), (824, 23852), (1072, 18334), (1424, 13802), (1648, 11926), (2144, 9167), (2848, 6901), (3296, 5963)]