19777040

素因数分解:

$2^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{1061}}^1$

素因数の和:1307

約数の個数: 40

約数和(自身を含む): 46222488

約数和(自身を除く): 26445448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233, 466, 932, 1061, 1165, 1864, 2122, 2330, 3728, 4244, 4660, 5305, 8488, 9320, 10610, 16976, 18640, 21220, 42440, 84880, 247213, 494426, 988852, 1236065, 1977704, 2472130, 3955408, 4944260, 9888520, 19777040]

約数ペア:

[(1, 19777040), (2, 9888520), (4, 4944260), (5, 3955408), (8, 2472130), (10, 1977704), (16, 1236065), (20, 988852), (40, 494426), (80, 247213), (233, 84880), (466, 42440), (932, 21220), (1061, 18640), (1165, 16976), (1864, 10610), (2122, 9320), (2330, 8488), (3728, 5305), (4244, 4660)]