21647760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90199}}^1$

素因数の和:90215

約数の個数: 40

約数和(自身を含む): 67108800

約数和(自身を除く): 45461040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90199, 180398, 270597, 360796, 450995, 541194, 721592, 901990, 1082388, 1352985, 1443184, 1803980, 2164776, 2705970, 3607960, 4329552, 5411940, 7215920, 10823880, 21647760]

約数ペア:

[(1, 21647760), (2, 10823880), (3, 7215920), (4, 5411940), (5, 4329552), (6, 3607960), (8, 2705970), (10, 2164776), (12, 1803980), (15, 1443184), (16, 1352985), (20, 1082388), (24, 901990), (30, 721592), (40, 541194), (48, 450995), (60, 360796), (80, 270597), (120, 180398), (240, 90199)]