20320960

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:302

約数の個数: 112

約数和(自身を含む): 55302912

約数和(自身を除く): 34981952

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, 160, 176, 184, 220, 230, 251, 253, 320, 352, 368, 440, 460, 502, 506, 704, 736, 880, 920, 1004, 1012, 1255, 1265, 1472, 1760, 1840, 2008, 2024, 2510, 2530, 2761, 3520, 3680, 4016, 4048, 5020, 5060, 5522, 5773, 7360, 8032, 8096, 10040, 10120, 11044, 11546, 13805, 16064, 16192, 20080, 20240, 22088, 23092, 27610, 28865, 40160, 40480, 44176, 46184, 55220, 57730, 63503, 80320, 80960, 88352, 92368, 110440, 115460, 127006, 176704, 184736, 220880, 230920, 254012, 317515, 369472, 441760, 461840, 508024, 635030, 883520, 923680, 1016048, 1270060, 1847360, 2032096, 2540120, 4064192, 5080240, 10160480, 20320960]

約数ペア:

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