20296005

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 34318080

約数和(自身を除く): 14022075

約数列:

[1, 3, 5, 15, 23, 69, 89, 115, 267, 345, 445, 661, 1335, 1983, 2047, 3305, 6141, 9915, 10235, 15203, 30705, 45609, 58829, 76015, 176487, 228045, 294145, 882435, 1353067, 4059201, 6765335, 20296005]

約数ペア:

[(1, 20296005), (3, 6765335), (5, 4059201), (15, 1353067), (23, 882435), (69, 294145), (89, 228045), (115, 176487), (267, 76015), (345, 58829), (445, 45609), (661, 30705), (1335, 15203), (1983, 10235), (2047, 9915), (3305, 6141)]