71543920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{18251}}^1$

素因数の和:18278

約数の個数: 60

約数和(自身を含む): 193507704

約数和(自身を除く): 121963784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 18251, 36502, 73004, 91255, 127757, 146008, 182510, 255514, 292016, 365020, 511028, 638785, 730040, 894299, 1022056, 1277570, 1460080, 1788598, 2044112, 2555140, 3577196, 4471495, 5110280, 7154392, 8942990, 10220560, 14308784, 17885980, 35771960, 71543920]

約数ペア:

[(1, 71543920), (2, 35771960), (4, 17885980), (5, 14308784), (7, 10220560), (8, 8942990), (10, 7154392), (14, 5110280), (16, 4471495), (20, 3577196), (28, 2555140), (35, 2044112), (40, 1788598), (49, 1460080), (56, 1277570), (70, 1022056), (80, 894299), (98, 730040), (112, 638785), (140, 511028), (196, 365020), (245, 292016), (280, 255514), (392, 182510), (490, 146008), (560, 127757), (784, 91255), (980, 73004), (1960, 36502), (3920, 18251)]