20408525640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{3491}}^1\times {\mathrm{5413}}^1$

素因数の和:8924

約数の個数: 128

約数和(自身を含む): 68060476800

約数和(自身を除く): 47651951160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 3491, 5413, 6982, 10473, 10826, 13964, 16239, 17455, 20946, 21652, 27065, 27928, 31419, 32478, 34910, 41892, 43304, 48717, 52365, 54130, 62838, 64956, 69820, 81195, 83784, 94257, 97434, 104730, 108260, 125676, 129912, 139640, 146151, 157095, 162390, 188514, 194868, 209460, 216520, 243585, 251352, 292302, 314190, 324780, 377028, 389736, 418920, 471285, 487170, 584604, 628380, 649560, 730755, 754056, 942570, 974340, 1169208, 1256760, 1461510, 1885140, 1948680, 2923020, 3770280, 5846040, 18896783, 37793566, 56690349, 75587132, 94483915, 113380698, 151174264, 170071047, 188967830, 226761396, 283451745, 340142094, 377935660, 453522792, 510213141, 566903490, 680284188, 755871320, 850355235, 1020426282, 1133806980, 1360568376, 1700710470, 2040852564, 2267613960, 2551065705, 3401420940, 4081705128, 5102131410, 6802841880, 10204262820, 20408525640]

約数ペア:

[(1, 20408525640), (2, 10204262820), (3, 6802841880), (4, 5102131410), (5, 4081705128), (6, 3401420940), (8, 2551065705), (9, 2267613960), (10, 2040852564), (12, 1700710470), (15, 1360568376), (18, 1133806980), (20, 1020426282), (24, 850355235), (27, 755871320), (30, 680284188), (36, 566903490), (40, 510213141), (45, 453522792), (54, 377935660), (60, 340142094), (72, 283451745), (90, 226761396), (108, 188967830), (120, 170071047), (135, 151174264), (180, 113380698), (216, 94483915), (270, 75587132), (360, 56690349), (540, 37793566), (1080, 18896783), (3491, 5846040), (5413, 3770280), (6982, 2923020), (10473, 1948680), (10826, 1885140), (13964, 1461510), (16239, 1256760), (17455, 1169208), (20946, 974340), (21652, 942570), (27065, 754056), (27928, 730755), (31419, 649560), (32478, 628380), (34910, 584604), (41892, 487170), (43304, 471285), (48717, 418920), (52365, 389736), (54130, 377028), (62838, 324780), (64956, 314190), (69820, 292302), (81195, 251352), (83784, 243585), (94257, 216520), (97434, 209460), (104730, 194868), (108260, 188514), (125676, 162390), (129912, 157095), (139640, 146151)]