20512071997568

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{491}}^1\times {\mathrm{42403}}^1$

素因数の和:43130

約数の個数: 128

約数和(自身を含む): 42134446252800

約数和(自身を除く): 21622374255232

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 179, 344, 358, 491, 688, 716, 982, 1376, 1432, 1964, 2752, 2864, 3928, 5504, 5728, 7697, 7856, 11456, 15394, 15712, 21113, 22912, 30788, 31424, 42226, 42403, 61576, 62848, 84452, 84806, 87889, 123152, 168904, 169612, 175778, 246304, 337808, 339224, 351556, 492608, 675616, 678448, 703112, 985216, 1351232, 1356896, 1406224, 1823329, 2702464, 2713792, 2812448, 3646658, 3779227, 5427584, 5624896, 7293316, 7558454, 7590137, 11249792, 14586632, 15116908, 15180274, 20819873, 29173264, 30233816, 30360548, 41639746, 58346528, 60467632, 60721096, 83279492, 116693056, 120935264, 121442192, 166558984, 233386112, 241870528, 242884384, 326375891, 333117968, 483741056, 485768768, 652751782, 666235936, 895254539, 971537536, 1305503564, 1332471872, 1790509078, 2611007128, 2664943744, 3581018156, 3726757267, 5222014256, 7162036312, 7453514534, 10444028512, 14324072624, 14907029068, 20888057024, 28648145248, 29814058136, 41776114048, 57296290496, 59628116272, 114592580992, 119256232544, 160250562481, 238512465088, 320501124962, 477024930176, 641002249924, 1282004499848, 2564008999696, 5128017999392, 10256035998784, 20512071997568]

約数ペア:

[(1, 20512071997568), (2, 10256035998784), (4, 5128017999392), (8, 2564008999696), (16, 1282004499848), (32, 641002249924), (43, 477024930176), (64, 320501124962), (86, 238512465088), (128, 160250562481), (172, 119256232544), (179, 114592580992), (344, 59628116272), (358, 57296290496), (491, 41776114048), (688, 29814058136), (716, 28648145248), (982, 20888057024), (1376, 14907029068), (1432, 14324072624), (1964, 10444028512), (2752, 7453514534), (2864, 7162036312), (3928, 5222014256), (5504, 3726757267), (5728, 3581018156), (7697, 2664943744), (7856, 2611007128), (11456, 1790509078), (15394, 1332471872), (15712, 1305503564), (21113, 971537536), (22912, 895254539), (30788, 666235936), (31424, 652751782), (42226, 485768768), (42403, 483741056), (61576, 333117968), (62848, 326375891), (84452, 242884384), (84806, 241870528), (87889, 233386112), (123152, 166558984), (168904, 121442192), (169612, 120935264), (175778, 116693056), (246304, 83279492), (337808, 60721096), (339224, 60467632), (351556, 58346528), (492608, 41639746), (675616, 30360548), (678448, 30233816), (703112, 29173264), (985216, 20819873), (1351232, 15180274), (1356896, 15116908), (1406224, 14586632), (1823329, 11249792), (2702464, 7590137), (2713792, 7558454), (2812448, 7293316), (3646658, 5624896), (3779227, 5427584)]