321567376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 715454208

約数和(自身を除く): 393886832

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 211, 221, 272, 422, 431, 442, 844, 862, 884, 1688, 1724, 1768, 2743, 3376, 3448, 3536, 3587, 5486, 5603, 6896, 7174, 7327, 10972, 11206, 14348, 14654, 21944, 22412, 28696, 29308, 43888, 44824, 46631, 57392, 58616, 89648, 90941, 93262, 95251, 117232, 181882, 186524, 190502, 363764, 373048, 381004, 727528, 746096, 762008, 1182233, 1455056, 1524016, 1545997, 2364466, 3091994, 4728932, 6183988, 9457864, 12367976, 18915728, 20097961, 24735952, 40195922, 80391844, 160783688, 321567376]

約数ペア:

[(1, 321567376), (2, 160783688), (4, 80391844), (8, 40195922), (13, 24735952), (16, 20097961), (17, 18915728), (26, 12367976), (34, 9457864), (52, 6183988), (68, 4728932), (104, 3091994), (136, 2364466), (208, 1545997), (211, 1524016), (221, 1455056), (272, 1182233), (422, 762008), (431, 746096), (442, 727528), (844, 381004), (862, 373048), (884, 363764), (1688, 190502), (1724, 186524), (1768, 181882), (2743, 117232), (3376, 95251), (3448, 93262), (3536, 90941), (3587, 89648), (5486, 58616), (5603, 57392), (6896, 46631), (7174, 44824), (7327, 43888), (10972, 29308), (11206, 28696), (14348, 22412), (14654, 21944)]