81815584

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1607}}^1$

素因数の和:1697

約数の個数: 48

約数和(自身を含む): 169380288

約数和(自身を除く): 87564704

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 74, 86, 148, 172, 296, 344, 592, 688, 1184, 1376, 1591, 1607, 3182, 3214, 6364, 6428, 12728, 12856, 25456, 25712, 50912, 51424, 59459, 69101, 118918, 138202, 237836, 276404, 475672, 552808, 951344, 1105616, 1902688, 2211232, 2556737, 5113474, 10226948, 20453896, 40907792, 81815584]

約数ペア:

[(1, 81815584), (2, 40907792), (4, 20453896), (8, 10226948), (16, 5113474), (32, 2556737), (37, 2211232), (43, 1902688), (74, 1105616), (86, 951344), (148, 552808), (172, 475672), (296, 276404), (344, 237836), (592, 138202), (688, 118918), (1184, 69101), (1376, 59459), (1591, 51424), (1607, 50912), (3182, 25712), (3214, 25456), (6364, 12856), (6428, 12728)]