20065840

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6779}}^1$

素因数の和:6829

約数の個数: 40

約数和(自身を含む): 47921040

約数和(自身を除く): 27855200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6779, 13558, 27116, 33895, 54232, 67790, 108464, 135580, 250823, 271160, 501646, 542320, 1003292, 1254115, 2006584, 2508230, 4013168, 5016460, 10032920, 20065840]

約数ペア:

[(1, 20065840), (2, 10032920), (4, 5016460), (5, 4013168), (8, 2508230), (10, 2006584), (16, 1254115), (20, 1003292), (37, 542320), (40, 501646), (74, 271160), (80, 250823), (148, 135580), (185, 108464), (296, 67790), (370, 54232), (592, 33895), (740, 27116), (1480, 13558), (2960, 6779)]