161107120

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 383689728

約数和(自身を除く): 222582608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 127, 157, 202, 254, 314, 404, 505, 508, 628, 635, 785, 808, 1010, 1016, 1256, 1270, 1570, 1616, 2020, 2032, 2512, 2540, 3140, 4040, 5080, 6280, 8080, 10160, 12560, 12827, 15857, 19939, 25654, 31714, 39878, 51308, 63428, 64135, 79285, 79756, 99695, 102616, 126856, 128270, 158570, 159512, 199390, 205232, 253712, 256540, 317140, 319024, 398780, 513080, 634280, 797560, 1026160, 1268560, 1595120, 2013839, 4027678, 8055356, 10069195, 16110712, 20138390, 32221424, 40276780, 80553560, 161107120]

約数ペア:

[(1, 161107120), (2, 80553560), (4, 40276780), (5, 32221424), (8, 20138390), (10, 16110712), (16, 10069195), (20, 8055356), (40, 4027678), (80, 2013839), (101, 1595120), (127, 1268560), (157, 1026160), (202, 797560), (254, 634280), (314, 513080), (404, 398780), (505, 319024), (508, 317140), (628, 256540), (635, 253712), (785, 205232), (808, 199390), (1010, 159512), (1016, 158570), (1256, 128270), (1270, 126856), (1570, 102616), (1616, 99695), (2020, 79756), (2032, 79285), (2512, 64135), (2540, 63428), (3140, 51308), (4040, 39878), (5080, 31714), (6280, 25654), (8080, 19939), (10160, 15857), (12560, 12827)]