20669904

素因数分解:

$2^4\times 3^4\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:450

約数の個数: 100

約数和(自身を含む): 61441380

約数和(自身を除く): 40771476

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 41, 48, 54, 72, 81, 82, 108, 123, 144, 162, 164, 216, 246, 324, 328, 369, 389, 432, 492, 648, 656, 738, 778, 984, 1107, 1167, 1296, 1476, 1556, 1968, 2214, 2334, 2952, 3112, 3321, 3501, 4428, 4668, 5904, 6224, 6642, 7002, 8856, 9336, 10503, 13284, 14004, 15949, 17712, 18672, 21006, 26568, 28008, 31509, 31898, 42012, 47847, 53136, 56016, 63018, 63796, 84024, 95694, 126036, 127592, 143541, 168048, 191388, 252072, 255184, 287082, 382776, 430623, 504144, 574164, 765552, 861246, 1148328, 1291869, 1722492, 2296656, 2583738, 3444984, 5167476, 6889968, 10334952, 20669904]

約数ペア:

[(1, 20669904), (2, 10334952), (3, 6889968), (4, 5167476), (6, 3444984), (8, 2583738), (9, 2296656), (12, 1722492), (16, 1291869), (18, 1148328), (24, 861246), (27, 765552), (36, 574164), (41, 504144), (48, 430623), (54, 382776), (72, 287082), (81, 255184), (82, 252072), (108, 191388), (123, 168048), (144, 143541), (162, 127592), (164, 126036), (216, 95694), (246, 84024), (324, 63796), (328, 63018), (369, 56016), (389, 53136), (432, 47847), (492, 42012), (648, 31898), (656, 31509), (738, 28008), (778, 26568), (984, 21006), (1107, 18672), (1167, 17712), (1296, 15949), (1476, 14004), (1556, 13284), (1968, 10503), (2214, 9336), (2334, 8856), (2952, 7002), (3112, 6642), (3321, 6224), (3501, 5904), (4428, 4668)]