25085985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 20533215

約数列:

[1, 3, 5, 15, 19, 23, 43, 57, 69, 89, 95, 115, 129, 215, 267, 285, 345, 437, 445, 645, 817, 989, 1311, 1335, 1691, 2047, 2185, 2451, 2967, 3827, 4085, 4945, 5073, 6141, 6555, 8455, 10235, 11481, 12255, 14835, 18791, 19135, 25365, 30705, 38893, 56373, 57405, 72713, 88021, 93955, 116679, 194465, 218139, 264063, 281865, 363565, 440105, 583395, 1090695, 1320315, 1672399, 5017197, 8361995, 25085985]

約数ペア:

[(1, 25085985), (3, 8361995), (5, 5017197), (15, 1672399), (19, 1320315), (23, 1090695), (43, 583395), (57, 440105), (69, 363565), (89, 281865), (95, 264063), (115, 218139), (129, 194465), (215, 116679), (267, 93955), (285, 88021), (345, 72713), (437, 57405), (445, 56373), (645, 38893), (817, 30705), (989, 25365), (1311, 19135), (1335, 18791), (1691, 14835), (2047, 12255), (2185, 11481), (2451, 10235), (2967, 8455), (3827, 6555), (4085, 6141), (4945, 5073)]