78840180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{438001}}^1$

素因数の和:438016

約数の個数: 36

約数和(自身を含む): 239149092

約数和(自身を除く): 160308912

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 438001, 876002, 1314003, 1752004, 2190005, 2628006, 3942009, 4380010, 5256012, 6570015, 7884018, 8760020, 13140030, 15768036, 19710045, 26280060, 39420090, 78840180]

約数ペア:

[(1, 78840180), (2, 39420090), (3, 26280060), (4, 19710045), (5, 15768036), (6, 13140030), (9, 8760020), (10, 7884018), (12, 6570015), (15, 5256012), (18, 4380010), (20, 3942009), (30, 2628006), (36, 2190005), (45, 1752004), (60, 1314003), (90, 876002), (180, 438001)]