40641920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:304

約数の個数: 128

約数和(自身を含む): 111041280

約数和(自身を除く): 70399360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 64, 80, 88, 92, 110, 115, 128, 160, 176, 184, 220, 230, 251, 253, 320, 352, 368, 440, 460, 502, 506, 640, 704, 736, 880, 920, 1004, 1012, 1255, 1265, 1408, 1472, 1760, 1840, 2008, 2024, 2510, 2530, 2761, 2944, 3520, 3680, 4016, 4048, 5020, 5060, 5522, 5773, 7040, 7360, 8032, 8096, 10040, 10120, 11044, 11546, 13805, 14720, 16064, 16192, 20080, 20240, 22088, 23092, 27610, 28865, 32128, 32384, 40160, 40480, 44176, 46184, 55220, 57730, 63503, 80320, 80960, 88352, 92368, 110440, 115460, 127006, 160640, 161920, 176704, 184736, 220880, 230920, 254012, 317515, 353408, 369472, 441760, 461840, 508024, 635030, 738944, 883520, 923680, 1016048, 1270060, 1767040, 1847360, 2032096, 2540120, 3694720, 4064192, 5080240, 8128384, 10160480, 20320960, 40641920]

約数ペア:

[(1, 40641920), (2, 20320960), (4, 10160480), (5, 8128384), (8, 5080240), (10, 4064192), (11, 3694720), (16, 2540120), (20, 2032096), (22, 1847360), (23, 1767040), (32, 1270060), (40, 1016048), (44, 923680), (46, 883520), (55, 738944), (64, 635030), (80, 508024), (88, 461840), (92, 441760), (110, 369472), (115, 353408), (128, 317515), (160, 254012), (176, 230920), (184, 220880), (220, 184736), (230, 176704), (251, 161920), (253, 160640), (320, 127006), (352, 115460), (368, 110440), (440, 92368), (460, 88352), (502, 80960), (506, 80320), (640, 63503), (704, 57730), (736, 55220), (880, 46184), (920, 44176), (1004, 40480), (1012, 40160), (1255, 32384), (1265, 32128), (1408, 28865), (1472, 27610), (1760, 23092), (1840, 22088), (2008, 20240), (2024, 20080), (2510, 16192), (2530, 16064), (2761, 14720), (2944, 13805), (3520, 11546), (3680, 11044), (4016, 10120), (4048, 10040), (5020, 8096), (5060, 8032), (5522, 7360), (5773, 7040)]