8206120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 20401920

約数和(自身を除く): 12195800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 367, 430, 520, 559, 734, 860, 1118, 1468, 1720, 1835, 2236, 2795, 2936, 3670, 4472, 4771, 5590, 7340, 9542, 11180, 14680, 15781, 19084, 22360, 23855, 31562, 38168, 47710, 63124, 78905, 95420, 126248, 157810, 190840, 205153, 315620, 410306, 631240, 820612, 1025765, 1641224, 2051530, 4103060, 8206120]

約数ペア:

[(1, 8206120), (2, 4103060), (4, 2051530), (5, 1641224), (8, 1025765), (10, 820612), (13, 631240), (20, 410306), (26, 315620), (40, 205153), (43, 190840), (52, 157810), (65, 126248), (86, 95420), (104, 78905), (130, 63124), (172, 47710), (215, 38168), (260, 31562), (344, 23855), (367, 22360), (430, 19084), (520, 15781), (559, 14680), (734, 11180), (860, 9542), (1118, 7340), (1468, 5590), (1720, 4771), (1835, 4472), (2236, 3670), (2795, 2936)]