389129520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124721}}^1$

素因数の和:124750

約数の個数: 80

約数和(自身を含む): 1299104352

約数和(自身を除く): 909974832

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, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 124721, 249442, 374163, 498884, 623605, 748326, 997768, 1247210, 1496652, 1621373, 1870815, 1995536, 2494420, 2993304, 3242746, 3741630, 4864119, 4988840, 5986608, 6485492, 7483260, 8106865, 9728238, 9977680, 12970984, 14966520, 16213730, 19456476, 24320595, 25941968, 29933040, 32427460, 38912952, 48641190, 64854920, 77825904, 97282380, 129709840, 194564760, 389129520]

約数ペア:

[(1, 389129520), (2, 194564760), (3, 129709840), (4, 97282380), (5, 77825904), (6, 64854920), (8, 48641190), (10, 38912952), (12, 32427460), (13, 29933040), (15, 25941968), (16, 24320595), (20, 19456476), (24, 16213730), (26, 14966520), (30, 12970984), (39, 9977680), (40, 9728238), (48, 8106865), (52, 7483260), (60, 6485492), (65, 5986608), (78, 4988840), (80, 4864119), (104, 3741630), (120, 3242746), (130, 2993304), (156, 2494420), (195, 1995536), (208, 1870815), (240, 1621373), (260, 1496652), (312, 1247210), (390, 997768), (520, 748326), (624, 623605), (780, 498884), (1040, 374163), (1560, 249442), (3120, 124721)]