81739520

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3361}}^1$

素因数の和:3401

約数の個数: 72

約数和(自身を含む): 206157840

約数和(自身を除く): 124418320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 3361, 4864, 6080, 6722, 12160, 13444, 16805, 24320, 26888, 33610, 53776, 63859, 67220, 107552, 127718, 134440, 215104, 255436, 268880, 319295, 430208, 510872, 537760, 638590, 860416, 1021744, 1075520, 1277180, 2043488, 2151040, 2554360, 4086976, 4302080, 5108720, 8173952, 10217440, 16347904, 20434880, 40869760, 81739520]

約数ペア:

[(1, 81739520), (2, 40869760), (4, 20434880), (5, 16347904), (8, 10217440), (10, 8173952), (16, 5108720), (19, 4302080), (20, 4086976), (32, 2554360), (38, 2151040), (40, 2043488), (64, 1277180), (76, 1075520), (80, 1021744), (95, 860416), (128, 638590), (152, 537760), (160, 510872), (190, 430208), (256, 319295), (304, 268880), (320, 255436), (380, 215104), (608, 134440), (640, 127718), (760, 107552), (1216, 67220), (1280, 63859), (1520, 53776), (2432, 33610), (3040, 26888), (3361, 24320), (4864, 16805), (6080, 13444), (6722, 12160)]