621052016

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{239}}^1$

素因数の和:335

約数の個数: 90

約数和(自身を含む): 1351989360

約数和(自身を除く): 730937344

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 169, 208, 239, 248, 338, 403, 478, 496, 676, 806, 956, 961, 1352, 1612, 1912, 1922, 2704, 3107, 3224, 3824, 3844, 5239, 6214, 6448, 7409, 7688, 10478, 12428, 12493, 14818, 15376, 20956, 24856, 24986, 29636, 40391, 41912, 49712, 49972, 59272, 80782, 83824, 96317, 99944, 118544, 161564, 162409, 192634, 199888, 229679, 323128, 324818, 385268, 459358, 646256, 649636, 770536, 918716, 1252121, 1299272, 1541072, 1837432, 2504242, 2598544, 2985827, 3674864, 5008484, 5971654, 10016968, 11943308, 20033936, 23886616, 38815751, 47773232, 77631502, 155263004, 310526008, 621052016]

約数ペア:

[(1, 621052016), (2, 310526008), (4, 155263004), (8, 77631502), (13, 47773232), (16, 38815751), (26, 23886616), (31, 20033936), (52, 11943308), (62, 10016968), (104, 5971654), (124, 5008484), (169, 3674864), (208, 2985827), (239, 2598544), (248, 2504242), (338, 1837432), (403, 1541072), (478, 1299272), (496, 1252121), (676, 918716), (806, 770536), (956, 649636), (961, 646256), (1352, 459358), (1612, 385268), (1912, 324818), (1922, 323128), (2704, 229679), (3107, 199888), (3224, 192634), (3824, 162409), (3844, 161564), (5239, 118544), (6214, 99944), (6448, 96317), (7409, 83824), (7688, 80782), (10478, 59272), (12428, 49972), (12493, 49712), (14818, 41912), (15376, 40391), (20956, 29636), (24856, 24986)]