20287035

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1153}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 38885184

約数和(自身を除く): 18598149

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 85, 115, 153, 207, 255, 345, 391, 765, 1035, 1153, 1173, 1955, 3459, 3519, 5765, 5865, 10377, 17295, 17595, 19601, 26519, 51885, 58803, 79557, 98005, 132595, 176409, 238671, 294015, 397785, 450823, 882045, 1193355, 1352469, 2254115, 4057407, 6762345, 20287035]

約数ペア:

[(1, 20287035), (3, 6762345), (5, 4057407), (9, 2254115), (15, 1352469), (17, 1193355), (23, 882045), (45, 450823), (51, 397785), (69, 294015), (85, 238671), (115, 176409), (153, 132595), (207, 98005), (255, 79557), (345, 58803), (391, 51885), (765, 26519), (1035, 19601), (1153, 17595), (1173, 17295), (1955, 10377), (3459, 5865), (3519, 5765)]