51159760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9007}}^1$

素因数の和:9091

約数の個数: 40

約数和(自身を含む): 120635136

約数和(自身を除く): 69475376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 9007, 18014, 36028, 45035, 72056, 90070, 144112, 180140, 360280, 639497, 720560, 1278994, 2557988, 3197485, 5115976, 6394970, 10231952, 12789940, 25579880, 51159760]

約数ペア:

[(1, 51159760), (2, 25579880), (4, 12789940), (5, 10231952), (8, 6394970), (10, 5115976), (16, 3197485), (20, 2557988), (40, 1278994), (71, 720560), (80, 639497), (142, 360280), (284, 180140), (355, 144112), (568, 90070), (710, 72056), (1136, 45035), (1420, 36028), (2840, 18014), (5680, 9007)]