72011120

素因数分解:

$2^4\times 5^1\times {\mathrm{900139}}^1$

素因数の和:900152

約数の個数: 20

約数和(自身を含む): 167426040

約数和(自身を除く): 95414920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 900139, 1800278, 3600556, 4500695, 7201112, 9001390, 14402224, 18002780, 36005560, 72011120]

約数ペア:

[(1, 72011120), (2, 36005560), (4, 18002780), (5, 14402224), (8, 9001390), (10, 7201112), (16, 4500695), (20, 3600556), (40, 1800278), (80, 900139)]