290039958

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{72911}}^1$

素因数の和:72949

約数の個数: 48

約数和(自身を含む): 716579136

約数和(自身を除く): 426539178

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 72911, 145822, 218733, 437466, 656199, 947843, 1239487, 1312398, 1895686, 2478974, 2843529, 3718461, 5687058, 7436922, 8530587, 11155383, 16113331, 17061174, 22310766, 32226662, 48339993, 96679986, 145019979, 290039958]

約数ペア:

[(1, 290039958), (2, 145019979), (3, 96679986), (6, 48339993), (9, 32226662), (13, 22310766), (17, 17061174), (18, 16113331), (26, 11155383), (34, 8530587), (39, 7436922), (51, 5687058), (78, 3718461), (102, 2843529), (117, 2478974), (153, 1895686), (221, 1312398), (234, 1239487), (306, 947843), (442, 656199), (663, 437466), (1326, 218733), (1989, 145822), (3978, 72911)]