20806483990

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1\times {\mathrm{127249}}^1$

素因数の和:127536

約数の個数: 32

約数和(自身を含む): 38095596000

約数和(自身を除く): 17289112010

約数列:

[1, 2, 5, 10, 83, 166, 197, 394, 415, 830, 985, 1970, 16351, 32702, 81755, 127249, 163510, 254498, 636245, 1272490, 10561667, 21123334, 25068053, 50136106, 52808335, 105616670, 125340265, 250680530, 2080648399, 4161296798, 10403241995, 20806483990]

約数ペア:

[(1, 20806483990), (2, 10403241995), (5, 4161296798), (10, 2080648399), (83, 250680530), (166, 125340265), (197, 105616670), (394, 52808335), (415, 50136106), (830, 25068053), (985, 21123334), (1970, 10561667), (16351, 1272490), (32702, 636245), (81755, 254498), (127249, 163510)]