20788110

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:687

約数の個数: 128

約数和(自身を含む): 67184640

約数和(自身を除く): 46396530

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 27, 30, 34, 35, 42, 45, 51, 54, 63, 70, 85, 90, 102, 105, 119, 126, 135, 153, 170, 189, 210, 238, 255, 270, 306, 315, 357, 378, 459, 510, 595, 630, 647, 714, 765, 918, 945, 1071, 1190, 1294, 1530, 1785, 1890, 1941, 2142, 2295, 3213, 3235, 3570, 3882, 4529, 4590, 5355, 5823, 6426, 6470, 9058, 9705, 10710, 10999, 11646, 13587, 16065, 17469, 19410, 21998, 22645, 27174, 29115, 32130, 32997, 34938, 40761, 45290, 54995, 58230, 65994, 67935, 76993, 81522, 87345, 98991, 109990, 122283, 135870, 153986, 164985, 174690, 197982, 203805, 230979, 244566, 296973, 329970, 384965, 407610, 461958, 494955, 593946, 611415, 692937, 769930, 989910, 1154895, 1222830, 1385874, 1484865, 2078811, 2309790, 2969730, 3464685, 4157622, 6929370, 10394055, 20788110]

約数ペア:

[(1, 20788110), (2, 10394055), (3, 6929370), (5, 4157622), (6, 3464685), (7, 2969730), (9, 2309790), (10, 2078811), (14, 1484865), (15, 1385874), (17, 1222830), (18, 1154895), (21, 989910), (27, 769930), (30, 692937), (34, 611415), (35, 593946), (42, 494955), (45, 461958), (51, 407610), (54, 384965), (63, 329970), (70, 296973), (85, 244566), (90, 230979), (102, 203805), (105, 197982), (119, 174690), (126, 164985), (135, 153986), (153, 135870), (170, 122283), (189, 109990), (210, 98991), (238, 87345), (255, 81522), (270, 76993), (306, 67935), (315, 65994), (357, 58230), (378, 54995), (459, 45290), (510, 40761), (595, 34938), (630, 32997), (647, 32130), (714, 29115), (765, 27174), (918, 22645), (945, 21998), (1071, 19410), (1190, 17469), (1294, 16065), (1530, 13587), (1785, 11646), (1890, 10999), (1941, 10710), (2142, 9705), (2295, 9058), (3213, 6470), (3235, 6426), (3570, 5823), (3882, 5355), (4529, 4590)]