81680886

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:280

約数の個数: 160

約数和(自身を含む): 234178560

約数和(自身を除く): 152497674

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 19, 21, 27, 34, 38, 42, 51, 54, 57, 63, 81, 102, 114, 119, 126, 133, 153, 162, 171, 189, 223, 238, 266, 306, 323, 342, 357, 378, 399, 446, 459, 513, 567, 646, 669, 714, 798, 918, 969, 1026, 1071, 1134, 1197, 1338, 1377, 1539, 1561, 1938, 2007, 2142, 2261, 2394, 2754, 2907, 3078, 3122, 3213, 3591, 3791, 4014, 4237, 4522, 4683, 5814, 6021, 6426, 6783, 7182, 7582, 8474, 8721, 9366, 9639, 10773, 11373, 12042, 12711, 13566, 14049, 17442, 18063, 19278, 20349, 21546, 22746, 25422, 26163, 26537, 28098, 29659, 34119, 36126, 38133, 40698, 42147, 52326, 53074, 59318, 61047, 68238, 72029, 76266, 79611, 84294, 88977, 102357, 114399, 122094, 126441, 144058, 159222, 177954, 183141, 204714, 216087, 228798, 238833, 252882, 266931, 307071, 343197, 366282, 432174, 477666, 504203, 533862, 614142, 648261, 686394, 716499, 800793, 1008406, 1296522, 1432998, 1512609, 1601586, 1944783, 2149497, 2402379, 3025218, 3889566, 4298994, 4537827, 4804758, 5834349, 9075654, 11668698, 13613481, 27226962, 40840443, 81680886]

約数ペア:

[(1, 81680886), (2, 40840443), (3, 27226962), (6, 13613481), (7, 11668698), (9, 9075654), (14, 5834349), (17, 4804758), (18, 4537827), (19, 4298994), (21, 3889566), (27, 3025218), (34, 2402379), (38, 2149497), (42, 1944783), (51, 1601586), (54, 1512609), (57, 1432998), (63, 1296522), (81, 1008406), (102, 800793), (114, 716499), (119, 686394), (126, 648261), (133, 614142), (153, 533862), (162, 504203), (171, 477666), (189, 432174), (223, 366282), (238, 343197), (266, 307071), (306, 266931), (323, 252882), (342, 238833), (357, 228798), (378, 216087), (399, 204714), (446, 183141), (459, 177954), (513, 159222), (567, 144058), (646, 126441), (669, 122094), (714, 114399), (798, 102357), (918, 88977), (969, 84294), (1026, 79611), (1071, 76266), (1134, 72029), (1197, 68238), (1338, 61047), (1377, 59318), (1539, 53074), (1561, 52326), (1938, 42147), (2007, 40698), (2142, 38133), (2261, 36126), (2394, 34119), (2754, 29659), (2907, 28098), (3078, 26537), (3122, 26163), (3213, 25422), (3591, 22746), (3791, 21546), (4014, 20349), (4237, 19278), (4522, 18063), (4683, 17442), (5814, 14049), (6021, 13566), (6426, 12711), (6783, 12042), (7182, 11373), (7582, 10773), (8474, 9639), (8721, 9366)]