20251744

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 41806800

約数和(自身を除く): 21555056

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 139, 157, 232, 278, 314, 464, 556, 628, 928, 1112, 1256, 2224, 2512, 4031, 4448, 4553, 5024, 8062, 9106, 16124, 18212, 21823, 32248, 36424, 43646, 64496, 72848, 87292, 128992, 145696, 174584, 349168, 632867, 698336, 1265734, 2531468, 5062936, 10125872, 20251744]

約数ペア:

[(1, 20251744), (2, 10125872), (4, 5062936), (8, 2531468), (16, 1265734), (29, 698336), (32, 632867), (58, 349168), (116, 174584), (139, 145696), (157, 128992), (232, 87292), (278, 72848), (314, 64496), (464, 43646), (556, 36424), (628, 32248), (928, 21823), (1112, 18212), (1256, 16124), (2224, 9106), (2512, 8062), (4031, 5024), (4448, 4553)]