654550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:97

約数の個数: 48

約数和(自身を含む): 1406160

約数和(自身を除く): 751610

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 53, 65, 95, 106, 130, 190, 247, 265, 325, 475, 494, 530, 650, 689, 950, 1007, 1235, 1325, 1378, 2014, 2470, 2650, 3445, 5035, 6175, 6890, 10070, 12350, 13091, 17225, 25175, 26182, 34450, 50350, 65455, 130910, 327275, 654550]

約数ペア:

[(1, 654550), (2, 327275), (5, 130910), (10, 65455), (13, 50350), (19, 34450), (25, 26182), (26, 25175), (38, 17225), (50, 13091), (53, 12350), (65, 10070), (95, 6890), (106, 6175), (130, 5035), (190, 3445), (247, 2650), (265, 2470), (325, 2014), (475, 1378), (494, 1325), (530, 1235), (650, 1007), (689, 950)]