399671584

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{22343}}^1$

素因数の和:22409

約数の個数: 48

約数和(自身を含む): 867125952

約数和(自身を除く): 467454368

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1376, 2236, 4472, 8944, 17888, 22343, 44686, 89372, 178744, 290459, 357488, 580918, 714976, 960749, 1161836, 1921498, 2323672, 3842996, 4647344, 7685992, 9294688, 12489737, 15371984, 24979474, 30743968, 49958948, 99917896, 199835792, 399671584]

約数ペア:

[(1, 399671584), (2, 199835792), (4, 99917896), (8, 49958948), (13, 30743968), (16, 24979474), (26, 15371984), (32, 12489737), (43, 9294688), (52, 7685992), (86, 4647344), (104, 3842996), (172, 2323672), (208, 1921498), (344, 1161836), (416, 960749), (559, 714976), (688, 580918), (1118, 357488), (1376, 290459), (2236, 178744), (4472, 89372), (8944, 44686), (17888, 22343)]