81303390

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 192

約数和(自身を含む): 261660672

約数和(自身を除く): 180357282

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 31, 35, 42, 45, 46, 62, 63, 69, 70, 90, 93, 105, 115, 126, 138, 155, 161, 181, 186, 207, 210, 217, 230, 279, 310, 315, 322, 345, 362, 414, 434, 465, 483, 543, 558, 630, 651, 690, 713, 805, 905, 930, 966, 1035, 1085, 1086, 1267, 1302, 1395, 1426, 1449, 1610, 1629, 1810, 1953, 2070, 2139, 2170, 2415, 2534, 2715, 2790, 2898, 3255, 3258, 3565, 3801, 3906, 4163, 4278, 4830, 4991, 5430, 5611, 6335, 6417, 6510, 7130, 7245, 7602, 8145, 8326, 9765, 9982, 10695, 11222, 11403, 12489, 12670, 12834, 14490, 14973, 16290, 16833, 19005, 19530, 20815, 21390, 22806, 24955, 24978, 28055, 29141, 29946, 32085, 33666, 37467, 38010, 39277, 41630, 44919, 49910, 50499, 56110, 57015, 58282, 62445, 64170, 74865, 74934, 78554, 84165, 87423, 89838, 100998, 114030, 117831, 124890, 129053, 145705, 149730, 168330, 174846, 187335, 196385, 224595, 235662, 252495, 258106, 262269, 291410, 353493, 374670, 387159, 392770, 437115, 449190, 504990, 524538, 589155, 645265, 706986, 774318, 874230, 903371, 1161477, 1178310, 1290530, 1311345, 1767465, 1806742, 1935795, 2322954, 2622690, 2710113, 3534930, 3871590, 4516855, 5420226, 5807385, 8130339, 9033710, 11614770, 13550565, 16260678, 27101130, 40651695, 81303390]

約数ペア:

[(1, 81303390), (2, 40651695), (3, 27101130), (5, 16260678), (6, 13550565), (7, 11614770), (9, 9033710), (10, 8130339), (14, 5807385), (15, 5420226), (18, 4516855), (21, 3871590), (23, 3534930), (30, 2710113), (31, 2622690), (35, 2322954), (42, 1935795), (45, 1806742), (46, 1767465), (62, 1311345), (63, 1290530), (69, 1178310), (70, 1161477), (90, 903371), (93, 874230), (105, 774318), (115, 706986), (126, 645265), (138, 589155), (155, 524538), (161, 504990), (181, 449190), (186, 437115), (207, 392770), (210, 387159), (217, 374670), (230, 353493), (279, 291410), (310, 262269), (315, 258106), (322, 252495), (345, 235662), (362, 224595), (414, 196385), (434, 187335), (465, 174846), (483, 168330), (543, 149730), (558, 145705), (630, 129053), (651, 124890), (690, 117831), (713, 114030), (805, 100998), (905, 89838), (930, 87423), (966, 84165), (1035, 78554), (1085, 74934), (1086, 74865), (1267, 64170), (1302, 62445), (1395, 58282), (1426, 57015), (1449, 56110), (1610, 50499), (1629, 49910), (1810, 44919), (1953, 41630), (2070, 39277), (2139, 38010), (2170, 37467), (2415, 33666), (2534, 32085), (2715, 29946), (2790, 29141), (2898, 28055), (3255, 24978), (3258, 24955), (3565, 22806), (3801, 21390), (3906, 20815), (4163, 19530), (4278, 19005), (4830, 16833), (4991, 16290), (5430, 14973), (5611, 14490), (6335, 12834), (6417, 12670), (6510, 12489), (7130, 11403), (7245, 11222), (7602, 10695), (8145, 9982), (8326, 9765)]