281908480

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:532

約数の個数: 144

約数和(自身を含む): 784111104

約数和(自身を除く): 502202624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 112, 128, 140, 146, 160, 224, 256, 280, 292, 320, 365, 431, 448, 511, 560, 584, 640, 730, 862, 896, 1022, 1120, 1168, 1280, 1460, 1724, 1792, 2044, 2155, 2240, 2336, 2555, 2920, 3017, 3448, 4088, 4310, 4480, 4672, 5110, 5840, 6034, 6896, 8176, 8620, 8960, 9344, 10220, 11680, 12068, 13792, 15085, 16352, 17240, 18688, 20440, 23360, 24136, 27584, 30170, 31463, 32704, 34480, 40880, 46720, 48272, 55168, 60340, 62926, 65408, 68960, 81760, 93440, 96544, 110336, 120680, 125852, 130816, 137920, 157315, 163520, 193088, 220241, 241360, 251704, 275840, 314630, 327040, 386176, 440482, 482720, 503408, 551680, 629260, 654080, 772352, 880964, 965440, 1006816, 1101205, 1258520, 1761928, 1930880, 2013632, 2202410, 2517040, 3523856, 3861760, 4027264, 4404820, 5034080, 7047712, 8054528, 8809640, 10068160, 14095424, 17619280, 20136320, 28190848, 35238560, 40272640, 56381696, 70477120, 140954240, 281908480]

約数ペア:

[(1, 281908480), (2, 140954240), (4, 70477120), (5, 56381696), (7, 40272640), (8, 35238560), (10, 28190848), (14, 20136320), (16, 17619280), (20, 14095424), (28, 10068160), (32, 8809640), (35, 8054528), (40, 7047712), (56, 5034080), (64, 4404820), (70, 4027264), (73, 3861760), (80, 3523856), (112, 2517040), (128, 2202410), (140, 2013632), (146, 1930880), (160, 1761928), (224, 1258520), (256, 1101205), (280, 1006816), (292, 965440), (320, 880964), (365, 772352), (431, 654080), (448, 629260), (511, 551680), (560, 503408), (584, 482720), (640, 440482), (730, 386176), (862, 327040), (896, 314630), (1022, 275840), (1120, 251704), (1168, 241360), (1280, 220241), (1460, 193088), (1724, 163520), (1792, 157315), (2044, 137920), (2155, 130816), (2240, 125852), (2336, 120680), (2555, 110336), (2920, 96544), (3017, 93440), (3448, 81760), (4088, 68960), (4310, 65408), (4480, 62926), (4672, 60340), (5110, 55168), (5840, 48272), (6034, 46720), (6896, 40880), (8176, 34480), (8620, 32704), (8960, 31463), (9344, 30170), (10220, 27584), (11680, 24136), (12068, 23360), (13792, 20440), (15085, 18688), (16352, 17240)]