80000820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{444449}}^1$

素因数の和:444464

約数の個数: 36

約数和(自身を含む): 242669700

約数和(自身を除く): 162668880

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 444449, 888898, 1333347, 1777796, 2222245, 2666694, 4000041, 4444490, 5333388, 6666735, 8000082, 8888980, 13333470, 16000164, 20000205, 26666940, 40000410, 80000820]

約数ペア:

[(1, 80000820), (2, 40000410), (3, 26666940), (4, 20000205), (5, 16000164), (6, 13333470), (9, 8888980), (10, 8000082), (12, 6666735), (15, 5333388), (18, 4444490), (20, 4000041), (30, 2666694), (36, 2222245), (45, 1777796), (60, 1333347), (90, 888898), (180, 444449)]