20514304

素因数分解:

$2^9\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:510

約数の個数: 40

約数和(自身を含む): 41492880

約数和(自身を除く): 20978576

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 256, 389, 412, 512, 778, 824, 1556, 1648, 3112, 3296, 6224, 6592, 12448, 13184, 24896, 26368, 40067, 49792, 52736, 80134, 99584, 160268, 199168, 320536, 641072, 1282144, 2564288, 5128576, 10257152, 20514304]

約数ペア:

[(1, 20514304), (2, 10257152), (4, 5128576), (8, 2564288), (16, 1282144), (32, 641072), (64, 320536), (103, 199168), (128, 160268), (206, 99584), (256, 80134), (389, 52736), (412, 49792), (512, 40067), (778, 26368), (824, 24896), (1556, 13184), (1648, 12448), (3112, 6592), (3296, 6224)]