198435888

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{28123}}^1$

素因数の和:28151

約数の個数: 90

約数和(自身を含む): 646036404

約数和(自身を除く): 447600516

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 49, 56, 63, 72, 84, 98, 112, 126, 144, 147, 168, 196, 252, 294, 336, 392, 441, 504, 588, 784, 882, 1008, 1176, 1764, 2352, 3528, 7056, 28123, 56246, 84369, 112492, 168738, 196861, 224984, 253107, 337476, 393722, 449968, 506214, 590583, 674952, 787444, 1012428, 1181166, 1349904, 1378027, 1574888, 1771749, 2024856, 2362332, 2756054, 3149776, 3543498, 4049712, 4134081, 4724664, 5512108, 7086996, 8268162, 9449328, 11024216, 12402243, 14173992, 16536324, 22048432, 24804486, 28347984, 33072648, 49608972, 66145296, 99217944, 198435888]

約数ペア:

[(1, 198435888), (2, 99217944), (3, 66145296), (4, 49608972), (6, 33072648), (7, 28347984), (8, 24804486), (9, 22048432), (12, 16536324), (14, 14173992), (16, 12402243), (18, 11024216), (21, 9449328), (24, 8268162), (28, 7086996), (36, 5512108), (42, 4724664), (48, 4134081), (49, 4049712), (56, 3543498), (63, 3149776), (72, 2756054), (84, 2362332), (98, 2024856), (112, 1771749), (126, 1574888), (144, 1378027), (147, 1349904), (168, 1181166), (196, 1012428), (252, 787444), (294, 674952), (336, 590583), (392, 506214), (441, 449968), (504, 393722), (588, 337476), (784, 253107), (882, 224984), (1008, 196861), (1176, 168738), (1764, 112492), (2352, 84369), (3528, 56246), (7056, 28123)]