20609720320

素因数分解:

$2^{13}\times 5^1\times 7^1\times {\mathrm{71881}}^1$

素因数の和:71919

約数の個数: 112

約数和(自身を含む): 56526854688

約数和(自身を除く): 35917134368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1024, 1120, 1280, 1792, 2048, 2240, 2560, 3584, 4096, 4480, 5120, 7168, 8192, 8960, 10240, 14336, 17920, 20480, 28672, 35840, 40960, 57344, 71680, 71881, 143360, 143762, 286720, 287524, 359405, 503167, 575048, 718810, 1006334, 1150096, 1437620, 2012668, 2300192, 2515835, 2875240, 4025336, 4600384, 5031670, 5750480, 8050672, 9200768, 10063340, 11500960, 16101344, 18401536, 20126680, 23001920, 32202688, 36803072, 40253360, 46003840, 64405376, 73606144, 80506720, 92007680, 128810752, 147212288, 161013440, 184015360, 257621504, 294424576, 322026880, 368030720, 515243008, 588849152, 644053760, 736061440, 1030486016, 1288107520, 1472122880, 2060972032, 2576215040, 2944245760, 4121944064, 5152430080, 10304860160, 20609720320]

約数ペア:

[(1, 20609720320), (2, 10304860160), (4, 5152430080), (5, 4121944064), (7, 2944245760), (8, 2576215040), (10, 2060972032), (14, 1472122880), (16, 1288107520), (20, 1030486016), (28, 736061440), (32, 644053760), (35, 588849152), (40, 515243008), (56, 368030720), (64, 322026880), (70, 294424576), (80, 257621504), (112, 184015360), (128, 161013440), (140, 147212288), (160, 128810752), (224, 92007680), (256, 80506720), (280, 73606144), (320, 64405376), (448, 46003840), (512, 40253360), (560, 36803072), (640, 32202688), (896, 23001920), (1024, 20126680), (1120, 18401536), (1280, 16101344), (1792, 11500960), (2048, 10063340), (2240, 9200768), (2560, 8050672), (3584, 5750480), (4096, 5031670), (4480, 4600384), (5120, 4025336), (7168, 2875240), (8192, 2515835), (8960, 2300192), (10240, 2012668), (14336, 1437620), (17920, 1150096), (20480, 1006334), (28672, 718810), (35840, 575048), (40960, 503167), (57344, 359405), (71680, 287524), (71881, 286720), (143360, 143762)]