81785816

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 181440000

約数和(自身を除く): 99654184

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 179, 199, 287, 328, 358, 398, 574, 716, 796, 1148, 1253, 1393, 1432, 1592, 2296, 2506, 2786, 5012, 5572, 7339, 8159, 10024, 11144, 14678, 16318, 29356, 32636, 35621, 51373, 57113, 58712, 65272, 71242, 102746, 114226, 142484, 205492, 228452, 249347, 284968, 410984, 456904, 498694, 997388, 1460461, 1994776, 2920922, 5841844, 10223227, 11683688, 20446454, 40892908, 81785816]

約数ペア:

[(1, 81785816), (2, 40892908), (4, 20446454), (7, 11683688), (8, 10223227), (14, 5841844), (28, 2920922), (41, 1994776), (56, 1460461), (82, 997388), (164, 498694), (179, 456904), (199, 410984), (287, 284968), (328, 249347), (358, 228452), (398, 205492), (574, 142484), (716, 114226), (796, 102746), (1148, 71242), (1253, 65272), (1393, 58712), (1432, 57113), (1592, 51373), (2296, 35621), (2506, 32636), (2786, 29356), (5012, 16318), (5572, 14678), (7339, 11144), (8159, 10024)]