31479280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{839}}^1$

素因数の和:926

約数の個数: 80

約数和(自身を含む): 84994560

約数和(自身を除く): 53515280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 536, 560, 670, 839, 938, 1072, 1340, 1678, 1876, 2345, 2680, 3356, 3752, 4195, 4690, 5360, 5873, 6712, 7504, 8390, 9380, 11746, 13424, 16780, 18760, 23492, 29365, 33560, 37520, 46984, 56213, 58730, 67120, 93968, 112426, 117460, 224852, 234920, 281065, 393491, 449704, 469840, 562130, 786982, 899408, 1124260, 1573964, 1967455, 2248520, 3147928, 3934910, 4497040, 6295856, 7869820, 15739640, 31479280]

約数ペア:

[(1, 31479280), (2, 15739640), (4, 7869820), (5, 6295856), (7, 4497040), (8, 3934910), (10, 3147928), (14, 2248520), (16, 1967455), (20, 1573964), (28, 1124260), (35, 899408), (40, 786982), (56, 562130), (67, 469840), (70, 449704), (80, 393491), (112, 281065), (134, 234920), (140, 224852), (268, 117460), (280, 112426), (335, 93968), (469, 67120), (536, 58730), (560, 56213), (670, 46984), (839, 37520), (938, 33560), (1072, 29365), (1340, 23492), (1678, 18760), (1876, 16780), (2345, 13424), (2680, 11746), (3356, 9380), (3752, 8390), (4195, 7504), (4690, 6712), (5360, 5873)]