489840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:186

約数の個数: 80

約数和(自身を含む): 1645728

約数和(自身を除く): 1155888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 157, 195, 208, 240, 260, 312, 314, 390, 471, 520, 624, 628, 780, 785, 942, 1040, 1256, 1560, 1570, 1884, 2041, 2355, 2512, 3120, 3140, 3768, 4082, 4710, 6123, 6280, 7536, 8164, 9420, 10205, 12246, 12560, 16328, 18840, 20410, 24492, 30615, 32656, 37680, 40820, 48984, 61230, 81640, 97968, 122460, 163280, 244920, 489840]

約数ペア:

[(1, 489840), (2, 244920), (3, 163280), (4, 122460), (5, 97968), (6, 81640), (8, 61230), (10, 48984), (12, 40820), (13, 37680), (15, 32656), (16, 30615), (20, 24492), (24, 20410), (26, 18840), (30, 16328), (39, 12560), (40, 12246), (48, 10205), (52, 9420), (60, 8164), (65, 7536), (78, 6280), (80, 6123), (104, 4710), (120, 4082), (130, 3768), (156, 3140), (157, 3120), (195, 2512), (208, 2355), (240, 2041), (260, 1884), (312, 1570), (314, 1560), (390, 1256), (471, 1040), (520, 942), (624, 785), (628, 780)]