81703720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2833}}^1$

素因数の和:2954

約数の個数: 64

約数和(自身を含む): 212209920

約数和(自身を除く): 130506200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 1030, 1442, 2060, 2833, 2884, 3605, 4120, 5666, 5768, 7210, 11332, 14165, 14420, 19831, 22664, 28330, 28840, 39662, 56660, 79324, 99155, 113320, 158648, 198310, 291799, 396620, 583598, 793240, 1167196, 1458995, 2042593, 2334392, 2917990, 4085186, 5835980, 8170372, 10212965, 11671960, 16340744, 20425930, 40851860, 81703720]

約数ペア:

[(1, 81703720), (2, 40851860), (4, 20425930), (5, 16340744), (7, 11671960), (8, 10212965), (10, 8170372), (14, 5835980), (20, 4085186), (28, 2917990), (35, 2334392), (40, 2042593), (56, 1458995), (70, 1167196), (103, 793240), (140, 583598), (206, 396620), (280, 291799), (412, 198310), (515, 158648), (721, 113320), (824, 99155), (1030, 79324), (1442, 56660), (2060, 39662), (2833, 28840), (2884, 28330), (3605, 22664), (4120, 19831), (5666, 14420), (5768, 14165), (7210, 11332)]