81405072

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 180

約数和(自身を含む): 270138960

約数和(自身を除く): 188733888

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 49, 56, 63, 72, 83, 84, 98, 112, 126, 139, 144, 147, 166, 168, 196, 249, 252, 278, 294, 332, 336, 392, 417, 441, 498, 504, 556, 581, 588, 664, 747, 784, 834, 882, 973, 996, 1008, 1112, 1162, 1176, 1251, 1328, 1494, 1668, 1743, 1764, 1946, 1992, 2224, 2324, 2352, 2502, 2919, 2988, 3336, 3486, 3528, 3892, 3984, 4067, 4648, 5004, 5229, 5838, 5976, 6672, 6811, 6972, 7056, 7784, 8134, 8757, 9296, 10008, 10458, 11537, 11676, 11952, 12201, 13622, 13944, 15568, 16268, 17514, 20016, 20433, 20916, 23074, 23352, 24402, 27244, 27888, 32536, 34611, 35028, 36603, 40866, 41832, 46148, 46704, 48804, 54488, 61299, 65072, 69222, 70056, 73206, 80759, 81732, 83664, 92296, 97608, 103833, 108976, 122598, 138444, 140112, 146412, 161518, 163464, 184592, 195216, 207666, 242277, 245196, 276888, 292824, 323036, 326928, 415332, 484554, 490392, 553776, 565313, 585648, 646072, 726831, 830664, 969108, 980784, 1130626, 1292144, 1453662, 1661328, 1695939, 1938216, 2261252, 2907324, 3391878, 3876432, 4522504, 5087817, 5814648, 6783756, 9045008, 10175634, 11629296, 13567512, 20351268, 27135024, 40702536, 81405072]

約数ペア:

[(1, 81405072), (2, 40702536), (3, 27135024), (4, 20351268), (6, 13567512), (7, 11629296), (8, 10175634), (9, 9045008), (12, 6783756), (14, 5814648), (16, 5087817), (18, 4522504), (21, 3876432), (24, 3391878), (28, 2907324), (36, 2261252), (42, 1938216), (48, 1695939), (49, 1661328), (56, 1453662), (63, 1292144), (72, 1130626), (83, 980784), (84, 969108), (98, 830664), (112, 726831), (126, 646072), (139, 585648), (144, 565313), (147, 553776), (166, 490392), (168, 484554), (196, 415332), (249, 326928), (252, 323036), (278, 292824), (294, 276888), (332, 245196), (336, 242277), (392, 207666), (417, 195216), (441, 184592), (498, 163464), (504, 161518), (556, 146412), (581, 140112), (588, 138444), (664, 122598), (747, 108976), (784, 103833), (834, 97608), (882, 92296), (973, 83664), (996, 81732), (1008, 80759), (1112, 73206), (1162, 70056), (1176, 69222), (1251, 65072), (1328, 61299), (1494, 54488), (1668, 48804), (1743, 46704), (1764, 46148), (1946, 41832), (1992, 40866), (2224, 36603), (2324, 35028), (2352, 34611), (2502, 32536), (2919, 27888), (2988, 27244), (3336, 24402), (3486, 23352), (3528, 23074), (3892, 20916), (3984, 20433), (4067, 20016), (4648, 17514), (5004, 16268), (5229, 15568), (5838, 13944), (5976, 13622), (6672, 12201), (6811, 11952), (6972, 11676), (7056, 11537), (7784, 10458), (8134, 10008), (8757, 9296)]