77740120

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{12379}}^1$

素因数の和:12547

約数の個数: 32

約数和(自身を含む): 176043600

約数和(自身を除く): 98303480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 12379, 24758, 49516, 61895, 99032, 123790, 247580, 495160, 1943503, 3887006, 7774012, 9717515, 15548024, 19435030, 38870060, 77740120]

約数ペア:

[(1, 77740120), (2, 38870060), (4, 19435030), (5, 15548024), (8, 9717515), (10, 7774012), (20, 3887006), (40, 1943503), (157, 495160), (314, 247580), (628, 123790), (785, 99032), (1256, 61895), (1570, 49516), (3140, 24758), (6280, 12379)]