131557120

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1301}}^1$

素因数の和:1401

約数の個数: 72

約数和(自身を含む): 319354560

約数和(自身を除く): 187797440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 632, 640, 790, 1264, 1280, 1301, 1580, 2528, 2602, 3160, 5056, 5204, 6320, 6505, 10112, 10408, 12640, 13010, 20224, 20816, 25280, 26020, 41632, 50560, 52040, 83264, 101120, 102779, 104080, 166528, 205558, 208160, 333056, 411116, 416320, 513895, 822232, 832640, 1027790, 1644464, 1665280, 2055580, 3288928, 4111160, 6577856, 8222320, 13155712, 16444640, 26311424, 32889280, 65778560, 131557120]

約数ペア:

[(1, 131557120), (2, 65778560), (4, 32889280), (5, 26311424), (8, 16444640), (10, 13155712), (16, 8222320), (20, 6577856), (32, 4111160), (40, 3288928), (64, 2055580), (79, 1665280), (80, 1644464), (128, 1027790), (158, 832640), (160, 822232), (256, 513895), (316, 416320), (320, 411116), (395, 333056), (632, 208160), (640, 205558), (790, 166528), (1264, 104080), (1280, 102779), (1301, 101120), (1580, 83264), (2528, 52040), (2602, 50560), (3160, 41632), (5056, 26020), (5204, 25280), (6320, 20816), (6505, 20224), (10112, 13010), (10408, 12640)]