80553560

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 185656320

約数和(自身を除く): 105102760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 127, 157, 202, 254, 314, 404, 505, 508, 628, 635, 785, 808, 1010, 1016, 1256, 1270, 1570, 2020, 2540, 3140, 4040, 5080, 6280, 12827, 15857, 19939, 25654, 31714, 39878, 51308, 63428, 64135, 79285, 79756, 99695, 102616, 126856, 128270, 158570, 159512, 199390, 256540, 317140, 398780, 513080, 634280, 797560, 2013839, 4027678, 8055356, 10069195, 16110712, 20138390, 40276780, 80553560]

約数ペア:

[(1, 80553560), (2, 40276780), (4, 20138390), (5, 16110712), (8, 10069195), (10, 8055356), (20, 4027678), (40, 2013839), (101, 797560), (127, 634280), (157, 513080), (202, 398780), (254, 317140), (314, 256540), (404, 199390), (505, 159512), (508, 158570), (628, 128270), (635, 126856), (785, 102616), (808, 99695), (1010, 79756), (1016, 79285), (1256, 64135), (1270, 63428), (1570, 51308), (2020, 39878), (2540, 31714), (3140, 25654), (4040, 19939), (5080, 15857), (6280, 12827)]