12498440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7621}}^1$

素因数の和:7673

約数の個数: 32

約数和(自身を含む): 28811160

約数和(自身を除く): 16312720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 7621, 15242, 30484, 38105, 60968, 76210, 152420, 304840, 312461, 624922, 1249844, 1562305, 2499688, 3124610, 6249220, 12498440]

約数ペア:

[(1, 12498440), (2, 6249220), (4, 3124610), (5, 2499688), (8, 1562305), (10, 1249844), (20, 624922), (40, 312461), (41, 304840), (82, 152420), (164, 76210), (205, 60968), (328, 38105), (410, 30484), (820, 15242), (1640, 7621)]