81978645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4513}}^1$

素因数の和:4701

約数の個数: 32

約数和(自身を含む): 150803712

約数和(自身を除く): 68825067

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 173, 519, 865, 1211, 2595, 3633, 4513, 6055, 13539, 18165, 22565, 31591, 67695, 94773, 157955, 473865, 780749, 2342247, 3903745, 5465243, 11711235, 16395729, 27326215, 81978645]

約数ペア:

[(1, 81978645), (3, 27326215), (5, 16395729), (7, 11711235), (15, 5465243), (21, 3903745), (35, 2342247), (105, 780749), (173, 473865), (519, 157955), (865, 94773), (1211, 67695), (2595, 31591), (3633, 22565), (4513, 18165), (6055, 13539)]