81446520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678721}}^1$

素因数の和:678735

約数の個数: 32

約数和(自身を含む): 244339920

約数和(自身を除く): 162893400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678721, 1357442, 2036163, 2714884, 3393605, 4072326, 5429768, 6787210, 8144652, 10180815, 13574420, 16289304, 20361630, 27148840, 40723260, 81446520]

約数ペア:

[(1, 81446520), (2, 40723260), (3, 27148840), (4, 20361630), (5, 16289304), (6, 13574420), (8, 10180815), (10, 8144652), (12, 6787210), (15, 5429768), (20, 4072326), (24, 3393605), (30, 2714884), (40, 2036163), (60, 1357442), (120, 678721)]