400656

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:519

約数の個数: 40

約数和(自身を含む): 1098144

約数和(自身を除く): 697488

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 491, 816, 982, 1473, 1964, 2946, 3928, 5892, 7856, 8347, 11784, 16694, 23568, 25041, 33388, 50082, 66776, 100164, 133552, 200328, 400656]

約数ペア:

[(1, 400656), (2, 200328), (3, 133552), (4, 100164), (6, 66776), (8, 50082), (12, 33388), (16, 25041), (17, 23568), (24, 16694), (34, 11784), (48, 8347), (51, 7856), (68, 5892), (102, 3928), (136, 2946), (204, 1964), (272, 1473), (408, 982), (491, 816)]