203917818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{461}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 452656512

約数和(自身を除く): 248738694

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 107, 159, 214, 318, 321, 461, 642, 689, 922, 1378, 1383, 1391, 2067, 2766, 2782, 4134, 4173, 5671, 5993, 8346, 11342, 11986, 17013, 17979, 24433, 34026, 35958, 48866, 49327, 73299, 73723, 98654, 146598, 147446, 147981, 221169, 295962, 317629, 442338, 635258, 641251, 952887, 1282502, 1905774, 1923753, 2614331, 3847506, 5228662, 7842993, 15685986, 33986303, 67972606, 101958909, 203917818]

約数ペア:

[(1, 203917818), (2, 101958909), (3, 67972606), (6, 33986303), (13, 15685986), (26, 7842993), (39, 5228662), (53, 3847506), (78, 2614331), (106, 1923753), (107, 1905774), (159, 1282502), (214, 952887), (318, 641251), (321, 635258), (461, 442338), (642, 317629), (689, 295962), (922, 221169), (1378, 147981), (1383, 147446), (1391, 146598), (2067, 98654), (2766, 73723), (2782, 73299), (4134, 49327), (4173, 48866), (5671, 35958), (5993, 34026), (8346, 24433), (11342, 17979), (11986, 17013)]