20482740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:558

約数の個数: 96

約数和(自身を含む): 64632960

約数和(自身を除く): 44150220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 83, 90, 108, 135, 166, 180, 249, 270, 332, 415, 457, 498, 540, 747, 830, 914, 996, 1245, 1371, 1494, 1660, 1828, 2241, 2285, 2490, 2742, 2988, 3735, 4113, 4482, 4570, 4980, 5484, 6855, 7470, 8226, 8964, 9140, 11205, 12339, 13710, 14940, 16452, 20565, 22410, 24678, 27420, 37931, 41130, 44820, 49356, 61695, 75862, 82260, 113793, 123390, 151724, 189655, 227586, 246780, 341379, 379310, 455172, 568965, 682758, 758620, 1024137, 1137930, 1365516, 1706895, 2048274, 2275860, 3413790, 4096548, 5120685, 6827580, 10241370, 20482740]

約数ペア:

[(1, 20482740), (2, 10241370), (3, 6827580), (4, 5120685), (5, 4096548), (6, 3413790), (9, 2275860), (10, 2048274), (12, 1706895), (15, 1365516), (18, 1137930), (20, 1024137), (27, 758620), (30, 682758), (36, 568965), (45, 455172), (54, 379310), (60, 341379), (83, 246780), (90, 227586), (108, 189655), (135, 151724), (166, 123390), (180, 113793), (249, 82260), (270, 75862), (332, 61695), (415, 49356), (457, 44820), (498, 41130), (540, 37931), (747, 27420), (830, 24678), (914, 22410), (996, 20565), (1245, 16452), (1371, 14940), (1494, 13710), (1660, 12339), (1828, 11205), (2241, 9140), (2285, 8964), (2490, 8226), (2742, 7470), (2988, 6855), (3735, 5484), (4113, 4980), (4482, 4570)]