20647655868

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{859}}^1\times {\mathrm{40879}}^1$

素因数の和:41759

約数の個数: 72

約数和(自身を含む): 56110252800

約数和(自身を除く): 35462596932

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 859, 1718, 2577, 3436, 5154, 6013, 10308, 12026, 18039, 24052, 36078, 40879, 42091, 72156, 81758, 84182, 122637, 126273, 163516, 168364, 245274, 252546, 286153, 490548, 505092, 572306, 858459, 1144612, 1716918, 2003071, 3433836, 4006142, 6009213, 8012284, 12018426, 24036852, 35115061, 70230122, 105345183, 140460244, 210690366, 245805427, 421380732, 491610854, 737416281, 983221708, 1474832562, 1720637989, 2949665124, 3441275978, 5161913967, 6882551956, 10323827934, 20647655868]

約数ペア:

[(1, 20647655868), (2, 10323827934), (3, 6882551956), (4, 5161913967), (6, 3441275978), (7, 2949665124), (12, 1720637989), (14, 1474832562), (21, 983221708), (28, 737416281), (42, 491610854), (49, 421380732), (84, 245805427), (98, 210690366), (147, 140460244), (196, 105345183), (294, 70230122), (588, 35115061), (859, 24036852), (1718, 12018426), (2577, 8012284), (3436, 6009213), (5154, 4006142), (6013, 3433836), (10308, 2003071), (12026, 1716918), (18039, 1144612), (24052, 858459), (36078, 572306), (40879, 505092), (42091, 490548), (72156, 286153), (81758, 252546), (84182, 245274), (122637, 168364), (126273, 163516)]