257567220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1489}}^1$

素因数の和:1566

約数の個数: 108

約数和(自身を含む): 807845220

約数和(自身を除く): 550278000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 961, 1116, 1395, 1489, 1860, 1922, 2790, 2883, 2978, 3844, 4467, 4805, 5580, 5766, 5956, 7445, 8649, 8934, 9610, 11532, 13401, 14415, 14890, 17298, 17868, 19220, 22335, 26802, 28830, 29780, 34596, 43245, 44670, 46159, 53604, 57660, 67005, 86490, 89340, 92318, 134010, 138477, 172980, 184636, 230795, 268020, 276954, 415431, 461590, 553908, 692385, 830862, 923180, 1384770, 1430929, 1661724, 2077155, 2769540, 2861858, 4154310, 4292787, 5723716, 7154645, 8308620, 8585574, 12878361, 14309290, 17171148, 21463935, 25756722, 28618580, 42927870, 51513444, 64391805, 85855740, 128783610, 257567220]

約数ペア:

[(1, 257567220), (2, 128783610), (3, 85855740), (4, 64391805), (5, 51513444), (6, 42927870), (9, 28618580), (10, 25756722), (12, 21463935), (15, 17171148), (18, 14309290), (20, 12878361), (30, 8585574), (31, 8308620), (36, 7154645), (45, 5723716), (60, 4292787), (62, 4154310), (90, 2861858), (93, 2769540), (124, 2077155), (155, 1661724), (180, 1430929), (186, 1384770), (279, 923180), (310, 830862), (372, 692385), (465, 553908), (558, 461590), (620, 415431), (930, 276954), (961, 268020), (1116, 230795), (1395, 184636), (1489, 172980), (1860, 138477), (1922, 134010), (2790, 92318), (2883, 89340), (2978, 86490), (3844, 67005), (4467, 57660), (4805, 53604), (5580, 46159), (5766, 44670), (5956, 43245), (7445, 34596), (8649, 29780), (8934, 28830), (9610, 26802), (11532, 22335), (13401, 19220), (14415, 17868), (14890, 17298)]