20395596

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 52572240

約数和(自身を除く): 32176644

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 89, 113, 156, 169, 178, 226, 267, 338, 339, 356, 452, 507, 534, 676, 678, 1014, 1068, 1157, 1356, 1469, 2028, 2314, 2938, 3471, 4407, 4628, 5876, 6942, 8814, 10057, 13884, 15041, 17628, 19097, 20114, 30082, 30171, 38194, 40228, 45123, 57291, 60164, 60342, 76388, 90246, 114582, 120684, 130741, 180492, 229164, 261482, 392223, 522964, 784446, 1568892, 1699633, 3399266, 5098899, 6798532, 10197798, 20395596]

約数ペア:

[(1, 20395596), (2, 10197798), (3, 6798532), (4, 5098899), (6, 3399266), (12, 1699633), (13, 1568892), (26, 784446), (39, 522964), (52, 392223), (78, 261482), (89, 229164), (113, 180492), (156, 130741), (169, 120684), (178, 114582), (226, 90246), (267, 76388), (338, 60342), (339, 60164), (356, 57291), (452, 45123), (507, 40228), (534, 38194), (676, 30171), (678, 30082), (1014, 20114), (1068, 19097), (1157, 17628), (1356, 15041), (1469, 13884), (2028, 10057), (2314, 8814), (2938, 6942), (3471, 5876), (4407, 4628)]