638162560

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1$

素因数の和:994

約数の個数: 128

約数和(自身を含む): 1755411840

約数和(自身を除く): 1117249280

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, 181, 224, 280, 320, 362, 448, 560, 640, 724, 787, 896, 905, 1120, 1267, 1448, 1574, 1810, 2240, 2534, 2896, 3148, 3620, 3935, 4480, 5068, 5509, 5792, 6296, 6335, 7240, 7870, 10136, 11018, 11584, 12592, 12670, 14480, 15740, 20272, 22036, 23168, 25184, 25340, 27545, 28960, 31480, 40544, 44072, 50368, 50680, 55090, 57920, 62960, 81088, 88144, 100736, 101360, 110180, 115840, 125920, 142447, 162176, 176288, 202720, 220360, 251840, 284894, 352576, 405440, 440720, 503680, 569788, 705152, 712235, 810880, 881440, 997129, 1139576, 1424470, 1762880, 1994258, 2279152, 2848940, 3525760, 3988516, 4558304, 4985645, 5697880, 7977032, 9116608, 9971290, 11395760, 15954064, 18233216, 19942580, 22791520, 31908128, 39885160, 45583040, 63816256, 79770320, 91166080, 127632512, 159540640, 319081280, 638162560]

約数ペア:

[(1, 638162560), (2, 319081280), (4, 159540640), (5, 127632512), (7, 91166080), (8, 79770320), (10, 63816256), (14, 45583040), (16, 39885160), (20, 31908128), (28, 22791520), (32, 19942580), (35, 18233216), (40, 15954064), (56, 11395760), (64, 9971290), (70, 9116608), (80, 7977032), (112, 5697880), (128, 4985645), (140, 4558304), (160, 3988516), (181, 3525760), (224, 2848940), (280, 2279152), (320, 1994258), (362, 1762880), (448, 1424470), (560, 1139576), (640, 997129), (724, 881440), (787, 810880), (896, 712235), (905, 705152), (1120, 569788), (1267, 503680), (1448, 440720), (1574, 405440), (1810, 352576), (2240, 284894), (2534, 251840), (2896, 220360), (3148, 202720), (3620, 176288), (3935, 162176), (4480, 142447), (5068, 125920), (5509, 115840), (5792, 110180), (6296, 101360), (6335, 100736), (7240, 88144), (7870, 81088), (10136, 62960), (11018, 57920), (11584, 55090), (12592, 50680), (12670, 50368), (14480, 44072), (15740, 40544), (20272, 31480), (22036, 28960), (23168, 27545), (25184, 25340)]