20477345

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 31026240

約数和(自身を除く): 10548895

約数列:

[1, 5, 7, 19, 35, 49, 53, 83, 95, 133, 245, 265, 371, 415, 581, 665, 931, 1007, 1577, 1855, 2597, 2905, 4067, 4399, 4655, 5035, 7049, 7885, 11039, 12985, 20335, 21995, 30793, 35245, 49343, 55195, 77273, 83581, 153965, 215551, 246715, 386365, 417905, 585067, 1077755, 2925335, 4095469, 20477345]

約数ペア:

[(1, 20477345), (5, 4095469), (7, 2925335), (19, 1077755), (35, 585067), (49, 417905), (53, 386365), (83, 246715), (95, 215551), (133, 153965), (245, 83581), (265, 77273), (371, 55195), (415, 49343), (581, 35245), (665, 30793), (931, 21995), (1007, 20335), (1577, 12985), (1855, 11039), (2597, 7885), (2905, 7049), (4067, 5035), (4399, 4655)]