20087745

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{367}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 33384960

約数和(自身を除く): 13297215

約数列:

[1, 3, 5, 15, 41, 89, 123, 205, 267, 367, 445, 615, 1101, 1335, 1835, 3649, 5505, 10947, 15047, 18245, 32663, 45141, 54735, 75235, 97989, 163315, 225705, 489945, 1339183, 4017549, 6695915, 20087745]

約数ペア:

[(1, 20087745), (3, 6695915), (5, 4017549), (15, 1339183), (41, 489945), (89, 225705), (123, 163315), (205, 97989), (267, 75235), (367, 54735), (445, 45141), (615, 32663), (1101, 18245), (1335, 15047), (1835, 10947), (3649, 5505)]