40705720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1303}}^1$

素因数の和:1396

約数の個数: 64

約数和(自身を含む): 101399040

約数和(自身を除く): 60693320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1303, 1420, 1562, 2606, 2840, 3124, 3905, 5212, 6248, 6515, 7810, 10424, 13030, 14333, 15620, 26060, 28666, 31240, 52120, 57332, 71665, 92513, 114664, 143330, 185026, 286660, 370052, 462565, 573320, 740104, 925130, 1017643, 1850260, 2035286, 3700520, 4070572, 5088215, 8141144, 10176430, 20352860, 40705720]

約数ペア:

[(1, 40705720), (2, 20352860), (4, 10176430), (5, 8141144), (8, 5088215), (10, 4070572), (11, 3700520), (20, 2035286), (22, 1850260), (40, 1017643), (44, 925130), (55, 740104), (71, 573320), (88, 462565), (110, 370052), (142, 286660), (220, 185026), (284, 143330), (355, 114664), (440, 92513), (568, 71665), (710, 57332), (781, 52120), (1303, 31240), (1420, 28666), (1562, 26060), (2606, 15620), (2840, 14333), (3124, 13030), (3905, 10424), (5212, 7810), (6248, 6515)]