72801040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70001}}^1$

素因数の和:70027

約数の個数: 40

約数和(自身を含む): 182285208

約数和(自身を除く): 109484168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 70001, 140002, 280004, 350005, 560008, 700010, 910013, 1120016, 1400020, 1820026, 2800040, 3640052, 4550065, 5600080, 7280104, 9100130, 14560208, 18200260, 36400520, 72801040]

約数ペア:

[(1, 72801040), (2, 36400520), (4, 18200260), (5, 14560208), (8, 9100130), (10, 7280104), (13, 5600080), (16, 4550065), (20, 3640052), (26, 2800040), (40, 1820026), (52, 1400020), (65, 1120016), (80, 910013), (104, 700010), (130, 560008), (208, 350005), (260, 280004), (520, 140002), (1040, 70001)]