12128475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 21427200

約数和(自身を除く): 9298725

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 79, 89, 115, 237, 267, 345, 395, 445, 575, 1185, 1335, 1725, 1817, 1975, 2047, 2225, 5451, 5925, 6141, 6675, 7031, 9085, 10235, 21093, 27255, 30705, 35155, 45425, 51175, 105465, 136275, 153525, 161713, 175775, 485139, 527325, 808565, 2425695, 4042825, 12128475]

約数ペア:

[(1, 12128475), (3, 4042825), (5, 2425695), (15, 808565), (23, 527325), (25, 485139), (69, 175775), (75, 161713), (79, 153525), (89, 136275), (115, 105465), (237, 51175), (267, 45425), (345, 35155), (395, 30705), (445, 27255), (575, 21093), (1185, 10235), (1335, 9085), (1725, 7031), (1817, 6675), (1975, 6141), (2047, 5925), (2225, 5451)]