20914205120

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{10891}}^1$

素因数の和:11278

約数の個数: 112

約数和(自身を含む): 52885713888

約数和(自身を除く): 31971508768

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 353, 544, 680, 706, 1088, 1360, 1412, 1765, 2720, 2824, 3530, 5440, 5648, 6001, 7060, 10891, 11296, 12002, 14120, 21782, 22592, 24004, 28240, 30005, 43564, 48008, 54455, 56480, 60010, 87128, 96016, 108910, 112960, 120020, 174256, 185147, 192032, 217820, 240040, 348512, 370294, 384064, 435640, 480080, 697024, 740588, 871280, 925735, 960160, 1481176, 1742560, 1851470, 1920320, 2962352, 3485120, 3702940, 3844523, 5924704, 7405880, 7689046, 11849408, 14811760, 15378092, 19222615, 29623520, 30756184, 38445230, 59247040, 61512368, 65356891, 76890460, 123024736, 130713782, 153780920, 246049472, 261427564, 307561840, 326784455, 522855128, 615123680, 653568910, 1045710256, 1230247360, 1307137820, 2091420512, 2614275640, 4182841024, 5228551280, 10457102560, 20914205120]

約数ペア:

[(1, 20914205120), (2, 10457102560), (4, 5228551280), (5, 4182841024), (8, 2614275640), (10, 2091420512), (16, 1307137820), (17, 1230247360), (20, 1045710256), (32, 653568910), (34, 615123680), (40, 522855128), (64, 326784455), (68, 307561840), (80, 261427564), (85, 246049472), (136, 153780920), (160, 130713782), (170, 123024736), (272, 76890460), (320, 65356891), (340, 61512368), (353, 59247040), (544, 38445230), (680, 30756184), (706, 29623520), (1088, 19222615), (1360, 15378092), (1412, 14811760), (1765, 11849408), (2720, 7689046), (2824, 7405880), (3530, 5924704), (5440, 3844523), (5648, 3702940), (6001, 3485120), (7060, 2962352), (10891, 1920320), (11296, 1851470), (12002, 1742560), (14120, 1481176), (21782, 960160), (22592, 925735), (24004, 871280), (28240, 740588), (30005, 697024), (43564, 480080), (48008, 435640), (54455, 384064), (56480, 370294), (60010, 348512), (87128, 240040), (96016, 217820), (108910, 192032), (112960, 185147), (120020, 174256)]