398664

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{113}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 1267110

約数和(自身を除く): 868446

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 113, 126, 147, 168, 196, 226, 252, 294, 339, 392, 441, 452, 504, 588, 678, 791, 882, 904, 1017, 1176, 1356, 1582, 1764, 2034, 2373, 2712, 3164, 3528, 4068, 4746, 5537, 6328, 7119, 8136, 9492, 11074, 14238, 16611, 18984, 22148, 28476, 33222, 44296, 49833, 56952, 66444, 99666, 132888, 199332, 398664]

約数ペア:

[(1, 398664), (2, 199332), (3, 132888), (4, 99666), (6, 66444), (7, 56952), (8, 49833), (9, 44296), (12, 33222), (14, 28476), (18, 22148), (21, 18984), (24, 16611), (28, 14238), (36, 11074), (42, 9492), (49, 8136), (56, 7119), (63, 6328), (72, 5537), (84, 4746), (98, 4068), (113, 3528), (126, 3164), (147, 2712), (168, 2373), (196, 2034), (226, 1764), (252, 1582), (294, 1356), (339, 1176), (392, 1017), (441, 904), (452, 882), (504, 791), (588, 678)]