81521552

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1321}}^1$

素因数の和:1384

約数の個数: 80

約数和(自身を含む): 196713600

約数和(自身を除く): 115192048

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 29, 38, 56, 58, 76, 112, 116, 133, 152, 203, 232, 266, 304, 406, 464, 532, 551, 812, 1064, 1102, 1321, 1624, 2128, 2204, 2642, 3248, 3857, 4408, 5284, 7714, 8816, 9247, 10568, 15428, 18494, 21136, 25099, 30856, 36988, 38309, 50198, 61712, 73976, 76618, 100396, 147952, 153236, 175693, 200792, 268163, 306472, 351386, 401584, 536326, 612944, 702772, 727871, 1072652, 1405544, 1455742, 2145304, 2811088, 2911484, 4290608, 5095097, 5822968, 10190194, 11645936, 20380388, 40760776, 81521552]

約数ペア:

[(1, 81521552), (2, 40760776), (4, 20380388), (7, 11645936), (8, 10190194), (14, 5822968), (16, 5095097), (19, 4290608), (28, 2911484), (29, 2811088), (38, 2145304), (56, 1455742), (58, 1405544), (76, 1072652), (112, 727871), (116, 702772), (133, 612944), (152, 536326), (203, 401584), (232, 351386), (266, 306472), (304, 268163), (406, 200792), (464, 175693), (532, 153236), (551, 147952), (812, 100396), (1064, 76618), (1102, 73976), (1321, 61712), (1624, 50198), (2128, 38309), (2204, 36988), (2642, 30856), (3248, 25099), (3857, 21136), (4408, 18494), (5284, 15428), (7714, 10568), (8816, 9247)]