56609720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:756

約数の個数: 64

約数和(自身を含む): 133539840

約数和(自身を除く): 76930120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 643, 710, 1240, 1286, 1420, 2201, 2572, 2840, 3215, 4402, 5144, 6430, 8804, 11005, 12860, 17608, 19933, 22010, 25720, 39866, 44020, 45653, 79732, 88040, 91306, 99665, 159464, 182612, 199330, 228265, 365224, 398660, 456530, 797320, 913060, 1415243, 1826120, 2830486, 5660972, 7076215, 11321944, 14152430, 28304860, 56609720]

約数ペア:

[(1, 56609720), (2, 28304860), (4, 14152430), (5, 11321944), (8, 7076215), (10, 5660972), (20, 2830486), (31, 1826120), (40, 1415243), (62, 913060), (71, 797320), (124, 456530), (142, 398660), (155, 365224), (248, 228265), (284, 199330), (310, 182612), (355, 159464), (568, 99665), (620, 91306), (643, 88040), (710, 79732), (1240, 45653), (1286, 44020), (1420, 39866), (2201, 25720), (2572, 22010), (2840, 19933), (3215, 17608), (4402, 12860), (5144, 11005), (6430, 8804)]