20354745

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 33523200

約数和(自身を除く): 13168455

約数列:

[1, 3, 5, 15, 79, 89, 193, 237, 267, 395, 445, 579, 965, 1185, 1335, 2895, 7031, 15247, 17177, 21093, 35155, 45741, 51531, 76235, 85885, 105465, 228705, 257655, 1356983, 4070949, 6784915, 20354745]

約数ペア:

[(1, 20354745), (3, 6784915), (5, 4070949), (15, 1356983), (79, 257655), (89, 228705), (193, 105465), (237, 85885), (267, 76235), (395, 51531), (445, 45741), (579, 35155), (965, 21093), (1185, 17177), (1335, 15247), (2895, 7031)]