205607920

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 160

約数和(自身を含む): 571392000

約数和(自身を除く): 365784080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 59, 70, 80, 98, 112, 118, 127, 140, 196, 236, 245, 254, 280, 295, 343, 392, 413, 472, 490, 508, 560, 590, 635, 686, 784, 826, 889, 944, 980, 1016, 1180, 1270, 1372, 1652, 1715, 1778, 1960, 2032, 2065, 2360, 2540, 2744, 2891, 3304, 3430, 3556, 3920, 4130, 4445, 4720, 5080, 5488, 5782, 6223, 6608, 6860, 7112, 7493, 8260, 8890, 10160, 11564, 12446, 13720, 14224, 14455, 14986, 16520, 17780, 20237, 23128, 24892, 27440, 28910, 29972, 31115, 33040, 35560, 37465, 40474, 43561, 46256, 49784, 52451, 57820, 59944, 62230, 71120, 74930, 80948, 87122, 99568, 101185, 104902, 115640, 119888, 124460, 149860, 161896, 174244, 202370, 209804, 217805, 231280, 248920, 262255, 299720, 323792, 348488, 367157, 404740, 419608, 435610, 497840, 524510, 599440, 696976, 734314, 809480, 839216, 871220, 1049020, 1468628, 1618960, 1742440, 1835785, 2098040, 2570099, 2937256, 3484880, 3671570, 4196080, 5140198, 5874512, 7343140, 10280396, 12850495, 14686280, 20560792, 25700990, 29372560, 41121584, 51401980, 102803960, 205607920]

約数ペア:

[(1, 205607920), (2, 102803960), (4, 51401980), (5, 41121584), (7, 29372560), (8, 25700990), (10, 20560792), (14, 14686280), (16, 12850495), (20, 10280396), (28, 7343140), (35, 5874512), (40, 5140198), (49, 4196080), (56, 3671570), (59, 3484880), (70, 2937256), (80, 2570099), (98, 2098040), (112, 1835785), (118, 1742440), (127, 1618960), (140, 1468628), (196, 1049020), (236, 871220), (245, 839216), (254, 809480), (280, 734314), (295, 696976), (343, 599440), (392, 524510), (413, 497840), (472, 435610), (490, 419608), (508, 404740), (560, 367157), (590, 348488), (635, 323792), (686, 299720), (784, 262255), (826, 248920), (889, 231280), (944, 217805), (980, 209804), (1016, 202370), (1180, 174244), (1270, 161896), (1372, 149860), (1652, 124460), (1715, 119888), (1778, 115640), (1960, 104902), (2032, 101185), (2065, 99568), (2360, 87122), (2540, 80948), (2744, 74930), (2891, 71120), (3304, 62230), (3430, 59944), (3556, 57820), (3920, 52451), (4130, 49784), (4445, 46256), (4720, 43561), (5080, 40474), (5488, 37465), (5782, 35560), (6223, 33040), (6608, 31115), (6860, 29972), (7112, 28910), (7493, 27440), (8260, 24892), (8890, 23128), (10160, 20237), (11564, 17780), (12446, 16520), (13720, 14986), (14224, 14455)]