291217388

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{461}}^1$

素因数の和:783

約数の個数: 72

約数和(自身を含む): 650344464

約数和(自身を除く): 359127076

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 293, 308, 461, 539, 586, 922, 1078, 1172, 1844, 2051, 2156, 3223, 3227, 4102, 5071, 6446, 6454, 8204, 10142, 12892, 12908, 14357, 20284, 22561, 22589, 28714, 35497, 45122, 45178, 57428, 70994, 90244, 90356, 135073, 141988, 157927, 248479, 270146, 315854, 496958, 540292, 631708, 945511, 993916, 1485803, 1891022, 2971606, 3782044, 5943212, 6618577, 10400621, 13237154, 20801242, 26474308, 41602484, 72804347, 145608694, 291217388]

約数ペア:

[(1, 291217388), (2, 145608694), (4, 72804347), (7, 41602484), (11, 26474308), (14, 20801242), (22, 13237154), (28, 10400621), (44, 6618577), (49, 5943212), (77, 3782044), (98, 2971606), (154, 1891022), (196, 1485803), (293, 993916), (308, 945511), (461, 631708), (539, 540292), (586, 496958), (922, 315854), (1078, 270146), (1172, 248479), (1844, 157927), (2051, 141988), (2156, 135073), (3223, 90356), (3227, 90244), (4102, 70994), (5071, 57428), (6446, 45178), (6454, 45122), (8204, 35497), (10142, 28714), (12892, 22589), (12908, 22561), (14357, 20284)]