128853760

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 359384256

約数和(自身を除く): 230530496

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

約数ペア:

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