257707520

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:300

約数の個数: 160

約数和(自身を含む): 719471808

約数和(自身を除く): 461764288

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, 197, 224, 256, 280, 292, 320, 365, 394, 448, 511, 512, 560, 584, 640, 730, 788, 896, 985, 1022, 1120, 1168, 1280, 1379, 1460, 1576, 1792, 1970, 2044, 2240, 2336, 2555, 2560, 2758, 2920, 3152, 3584, 3940, 4088, 4480, 4672, 5110, 5516, 5840, 6304, 6895, 7880, 8176, 8960, 9344, 10220, 11032, 11680, 12608, 13790, 14381, 15760, 16352, 17920, 18688, 20440, 22064, 23360, 25216, 27580, 28762, 31520, 32704, 37376, 40880, 44128, 46720, 50432, 55160, 57524, 63040, 65408, 71905, 81760, 88256, 93440, 100667, 100864, 110320, 115048, 126080, 130816, 143810, 163520, 176512, 186880, 201334, 220640, 230096, 252160, 261632, 287620, 327040, 353024, 402668, 441280, 460192, 503335, 504320, 575240, 654080, 706048, 805336, 882560, 920384, 1006670, 1150480, 1308160, 1610672, 1765120, 1840768, 2013340, 2300960, 3221344, 3530240, 3681536, 4026680, 4601920, 6442688, 7363072, 8053360, 9203840, 12885376, 16106720, 18407680, 25770752, 32213440, 36815360, 51541504, 64426880, 128853760, 257707520]

約数ペア:

[(1, 257707520), (2, 128853760), (4, 64426880), (5, 51541504), (7, 36815360), (8, 32213440), (10, 25770752), (14, 18407680), (16, 16106720), (20, 12885376), (28, 9203840), (32, 8053360), (35, 7363072), (40, 6442688), (56, 4601920), (64, 4026680), (70, 3681536), (73, 3530240), (80, 3221344), (112, 2300960), (128, 2013340), (140, 1840768), (146, 1765120), (160, 1610672), (197, 1308160), (224, 1150480), (256, 1006670), (280, 920384), (292, 882560), (320, 805336), (365, 706048), (394, 654080), (448, 575240), (511, 504320), (512, 503335), (560, 460192), (584, 441280), (640, 402668), (730, 353024), (788, 327040), (896, 287620), (985, 261632), (1022, 252160), (1120, 230096), (1168, 220640), (1280, 201334), (1379, 186880), (1460, 176512), (1576, 163520), (1792, 143810), (1970, 130816), (2044, 126080), (2240, 115048), (2336, 110320), (2555, 100864), (2560, 100667), (2758, 93440), (2920, 88256), (3152, 81760), (3584, 71905), (3940, 65408), (4088, 63040), (4480, 57524), (4672, 55160), (5110, 50432), (5516, 46720), (5840, 44128), (6304, 40880), (6895, 37376), (7880, 32704), (8176, 31520), (8960, 28762), (9344, 27580), (10220, 25216), (11032, 23360), (11680, 22064), (12608, 20440), (13790, 18688), (14381, 17920), (15760, 16352)]