19670528

素因数分解:

$2^9\times {\mathrm{103}}^1\times {\mathrm{373}}^1$

素因数の和:494

約数の個数: 40

約数和(自身を含む): 39790608

約数和(自身を除く): 20120080

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 256, 373, 412, 512, 746, 824, 1492, 1648, 2984, 3296, 5968, 6592, 11936, 13184, 23872, 26368, 38419, 47744, 52736, 76838, 95488, 153676, 190976, 307352, 614704, 1229408, 2458816, 4917632, 9835264, 19670528]

約数ペア:

[(1, 19670528), (2, 9835264), (4, 4917632), (8, 2458816), (16, 1229408), (32, 614704), (64, 307352), (103, 190976), (128, 153676), (206, 95488), (256, 76838), (373, 52736), (412, 47744), (512, 38419), (746, 26368), (824, 23872), (1492, 13184), (1648, 11936), (2984, 6592), (3296, 5968)]