72819978

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:153

約数の個数: 144

約数和(自身を含む): 196499520

約数和(自身を除く): 123679542

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 23, 33, 42, 46, 49, 66, 69, 77, 89, 98, 121, 138, 147, 154, 161, 178, 231, 242, 253, 267, 294, 322, 363, 462, 483, 506, 534, 539, 623, 726, 759, 847, 966, 979, 1078, 1127, 1246, 1518, 1617, 1694, 1771, 1869, 1958, 2047, 2254, 2541, 2783, 2937, 3234, 3381, 3542, 3738, 4094, 4361, 5082, 5313, 5566, 5874, 5929, 6141, 6762, 6853, 8349, 8722, 10626, 10769, 11858, 12282, 12397, 13083, 13706, 14329, 16698, 17787, 19481, 20559, 21538, 22517, 24794, 26166, 28658, 32307, 35574, 37191, 38962, 41118, 42987, 45034, 47971, 58443, 64614, 67551, 74382, 75383, 85974, 95942, 100303, 116886, 135102, 136367, 143913, 150766, 157619, 200606, 226149, 247687, 272734, 287826, 300909, 315238, 409101, 452298, 472857, 495374, 527681, 601818, 743061, 818202, 945714, 1055362, 1103333, 1486122, 1583043, 1733809, 2206666, 3166086, 3309999, 3467618, 5201427, 6619998, 10402854, 12136663, 24273326, 36409989, 72819978]

約数ペア:

[(1, 72819978), (2, 36409989), (3, 24273326), (6, 12136663), (7, 10402854), (11, 6619998), (14, 5201427), (21, 3467618), (22, 3309999), (23, 3166086), (33, 2206666), (42, 1733809), (46, 1583043), (49, 1486122), (66, 1103333), (69, 1055362), (77, 945714), (89, 818202), (98, 743061), (121, 601818), (138, 527681), (147, 495374), (154, 472857), (161, 452298), (178, 409101), (231, 315238), (242, 300909), (253, 287826), (267, 272734), (294, 247687), (322, 226149), (363, 200606), (462, 157619), (483, 150766), (506, 143913), (534, 136367), (539, 135102), (623, 116886), (726, 100303), (759, 95942), (847, 85974), (966, 75383), (979, 74382), (1078, 67551), (1127, 64614), (1246, 58443), (1518, 47971), (1617, 45034), (1694, 42987), (1771, 41118), (1869, 38962), (1958, 37191), (2047, 35574), (2254, 32307), (2541, 28658), (2783, 26166), (2937, 24794), (3234, 22517), (3381, 21538), (3542, 20559), (3738, 19481), (4094, 17787), (4361, 16698), (5082, 14329), (5313, 13706), (5566, 13083), (5874, 12397), (5929, 12282), (6141, 11858), (6762, 10769), (6853, 10626), (8349, 8722)]