72128380

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 155151360

約数和(自身を除く): 83022980

約数列:

[1, 2, 4, 5, 10, 20, 73, 127, 146, 254, 292, 365, 389, 508, 635, 730, 778, 1270, 1460, 1556, 1945, 2540, 3890, 7780, 9271, 18542, 28397, 37084, 46355, 49403, 56794, 92710, 98806, 113588, 141985, 185420, 197612, 247015, 283970, 494030, 567940, 988060, 3606419, 7212838, 14425676, 18032095, 36064190, 72128380]

約数ペア:

[(1, 72128380), (2, 36064190), (4, 18032095), (5, 14425676), (10, 7212838), (20, 3606419), (73, 988060), (127, 567940), (146, 494030), (254, 283970), (292, 247015), (365, 197612), (389, 185420), (508, 141985), (635, 113588), (730, 98806), (778, 92710), (1270, 56794), (1460, 49403), (1556, 46355), (1945, 37084), (2540, 28397), (3890, 18542), (7780, 9271)]