81837784

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 182108160

約数和(自身を除く): 100270376

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 127, 148, 254, 259, 296, 311, 508, 518, 622, 889, 1016, 1036, 1244, 1778, 2072, 2177, 2488, 3556, 4354, 4699, 7112, 8708, 9398, 11507, 17416, 18796, 23014, 32893, 37592, 39497, 46028, 65786, 78994, 80549, 92056, 131572, 157988, 161098, 263144, 276479, 315976, 322196, 552958, 644392, 1105916, 1461389, 2211832, 2922778, 5845556, 10229723, 11691112, 20459446, 40918892, 81837784]

約数ペア:

[(1, 81837784), (2, 40918892), (4, 20459446), (7, 11691112), (8, 10229723), (14, 5845556), (28, 2922778), (37, 2211832), (56, 1461389), (74, 1105916), (127, 644392), (148, 552958), (254, 322196), (259, 315976), (296, 276479), (311, 263144), (508, 161098), (518, 157988), (622, 131572), (889, 92056), (1016, 80549), (1036, 78994), (1244, 65786), (1778, 46028), (2072, 39497), (2177, 37592), (2488, 32893), (3556, 23014), (4354, 18796), (4699, 17416), (7112, 11507), (8708, 9398)]